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Showing posts from August, 2015
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ZIPCODE - IS IT POSSIBLE TO SEND A ZIP CODE TO MAPS V3 API TO RETURN A MAP
CENTERED ON THAT ZIP CODE? -
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- August 15, 2015
i need display map on web page - have user's address info, security purposes
need map centered on centroid point of zip code or city, not specific address.
is possible submit zip code google maps v3 api , have return map of postal code
/ zip-code? or have first geocode zip code , submit lat/long? this how doing
using yahoo... //assign zipcode database zipcode variable zipcode =
ouser("zipcode") <script type="text/javascript"
src="http://api.maps.yahoo.com/ajaxymap?v=3.8&appid=x"> </script> // create
container <div id="map" class="map"> <script type="text/javascript"> // create
map object var map = new ymap(document.getelementbyid('map')); // display map
centered on zipcode map.drawzoomandcenter("<%=zipcode%>", 5); </script> if go
google.com/maps , enter 5 digit zip code, website return map centered on central
point of zip code. script above
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FLASH - HOW TO PROGRAMATICALLY INJECT TEXTS INTO A SWF FILE -
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- August 15, 2015
i'm using dynamic text fields in swf , reading values external text file, i'm
able use same swf "template" on , on again different texts. great if somehow
wrap swf , variables file 1 swf file programatically, don't need mess 2 files
per instance (or inject texts , create static swf instance, long done without
manual intervention , result 1 swf file, solution fine). real plus able
processing on linux server. if external file xml, can embedded in class such as:
public class data { [embed(source='data.xml',
mimetype="application/octet-stream")] public static const xml:class; } ...and
instantiated as: var xml:xml = new xml(new data.xml); or, xml can pasted class,
such as: public class data { public static var xml:xml = <root> <menu>
<item>waffles</item> <item>belgian
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JQUERY - ISSUE WITH TOGGLE -
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- August 15, 2015
i have following code html <div class="menu_head"> <p class="menu_head_open">
<img style="vertical-align:middle;" src="http://oi44.tinypic.com/dyz2r.jpg"
alt="">administration </p> </div> <div class="menu_body" style="display: none;">
<table class="plan_table" cellspacing="0" cellpadding="0"> <tbody> <tr> <td
class="plan_ta_txt" style="width:40%">moderators</td> <td>1</td> <td>1</td> <td
style="width:10%">3 </td> <td style="width:10%">5 </td> <td style="width:10%">10
</td> <td style="width:10%;border-right:none;"> <img style="width:20px;
height:17px; padding-left:5px" src="right.gif" alt=&quo
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PHP - URL ROUTING USING REWRITERULE -
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- August 15, 2015
i trying create own php mvc framework learning purpose. have following directory
structure: localhost/mvc: .htaccess index.php application controller model view
config/ routes.php error/ error.php inside application/config/routes.php have
following code: $route['default_controller'] = "mycontroller"; now trying
achieve when user visits root directory using browser want value of
$route['default_controller'] route.php file , load php class inside folder
controller matches value . and if user tries visit application using url this:
localhost/mvc/cars , want search class name cars inside controller folder , load
it. in case there no class called cars want take user error/error.php i guess
achieve above targets have work .htaccess file in root directory. please tell me
code there? if there other way achieve please suggest me. i have tried use
.htaccess codes here , not working me it sounds , buzzword standpoint, me little
c
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GETTING PERL'S EXECUTABLE ABSOLUTE PATH WITH KEEPING SYMLINKS -
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- August 15, 2015
how cleaned-up absolute path perl's executable keeping symlinks? (from $^x
variable or anyhow) example perl executable: $ ls -l /opt/local/bin/perl
lrwxr-xr-x 1 root admin 8 18 nov 02:46 /opt/local/bin/perl -> perl5.12 i want
/opt/local/bin/perl in script regardless how run perl interpreter. the testing
code (changesbang.pl): use strict; use warnings; use cwd; use file::spec; use
config; $fmt = "%-25s: %s\n"; printf $fmt, "the value of ^x", $^x; printf $fmt,
"cwd::realpath", cwd::realpath($^x); printf $fmt, "cwd::abs_path",
cwd::abs_path($^x); printf $fmt, "file::spec->cannonpath",
file::spec->canonpath($^x); printf $fmt, "file::spec->rel2abs",
file::spec->rel2abs($^x); printf $fmt, "config{perlpath}", $config{perlpath};
now when run above as $ ../../../../../opt/local/bin/perl changesbang.pl value
of ^x : ../../../../../opt/loc
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JAVASCRIPT - HOW TO STOP SETINTERVAL() ON SLIDETOGGLE() THEN RESTART AGAIN? -
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- August 15, 2015
i have looked @ other answers similiar question can't make them fit scenario. i
have page has sidebar contains 15 results auto refreshes, fine. there link loads
external page div overlay. new div full list of results auto refreshes whilst
open. (don't want both divs auto-refreshing in background uneccesarily) in full
list div each result has jquery slidetoggle() function display more information.
what trying(and failing) make auto refresh stop whilst slidetoggle displaying
information, cos otherwise when page refreshes goes display:none . here latest
attempt: html main page has div load into... <div id="full_list"> loading...
</div> external page full list <div class="events_list"> <!--container events
--> <ul><li> <div class="full_event"> <!--each event in list--> #1<b> 500 m race
</b> <!--this bit seen
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IOS - HOW TO MAKE AN IPHONE APPLICATION THAT SHOULD NOT GIVE USER PERMISSION TO
DELETE ITSELF. IS THERE ANY WAY TO DO SO? -
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- August 15, 2015
i in organization going provide ipad installed our app. on particular ipads
sales staff want app should not deletable ipad. there way programatically in
xcode? app not going on app store. please if has answers? you can't within code
of app. can implementing mdm solution.
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HADOOP - HDFS - LS: FAILED ON LOCAL EXCEPTION:
COM.GOOGLE.PROTOBUF.INVALIDPROTOCOLBUFFEREXCEPTION: -
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- August 15, 2015
i trying use below list dirs in hdfs... ubuntu@ubuntu:~$ hadoop fs -ls
hdfs://127.0.0.1:50075/ ls: failed on local exception:
com.google.protobuf.invalidprotocolbufferexception: protocol message end-group
tag did not match expected tag.; host details : local host is:
"ubuntu/127.0.0.1"; destination host is: "ubuntu":50075; here /etc/hosts file
127.0.0.1 ubuntu localhost #127.0.1.1 ubuntu # following lines desirable ipv6
capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0
ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters hi use hdfs:// list
dirs? i using couldera 4.3 on ubuntu 12.04 hdfs not running @ 50075. check hdfs
port use following command in linux hdfs getconf -confkey fs.default.name you
output like hdfs://hmaster:54310 and correct url accordingly
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ACTIONSCRIPT 3 - HOW DO I REFERENCE TWO DYNAMIC OBJECTS WHEN CHECKING FOR
COLLISION? -
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- August 15, 2015
i can't figure out how information on slot letter dropped above, letters snaps
last slot, because it's 1 referenced properly. can tell me method check
object(slot) letter dropped above? 2 kinds of movieclips create background
letter , slot drop in. var myformat:textformat = new textformat();
myformat.color = 0xffffff; myformat.font = "verdana"; myformat.size = 35;
myformat.bold = true; myformat.align = textformatalign.center; var
mystring:string = "firefly" mystring = mystring.touppercase(); var myarray:array
= mystring.split(''); for(var i:number = 0; < mystring.length; i++) { var
mybogstav:bogstav = new bogstav(); var mybogstavslot:bogstavslot = new
bogstavslot(); var mytext:textfield = new textfield(); mytext.selectable =
false; mytext.width = 50; mytext.height = 50; addchild(mybogstavslot);
addchild(mybogstav); mybogstav.addchild(mytext); mytext.defaulttextformat =
myfor
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MISSING PARAMENTER WHEN I USE MAP (SCALA) -
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- August 15, 2015
i'm having irritating error can't find explanation for. have code here below:
async{ ws.url(url).get().map{ response => //response here giving me error.
ok("response: " + (response.json \ "media_count").as[string]) } } and gives me
error saying: missing parameter type on response. where should define parameter
type? or error saying more specific? i think using play.libs.ws meant java api.
the ws.url(...).get() ws class returns promise object of type: promise . map
function class takes function instance, not same function1 scala. causing
compiler error. if you're working in scala should use play.api.libs.ws.ws meant
work scala library. replace import play.libs.ws import play.api.libs.ws.ws in
program , error should go away.
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IPHONE - HOW CORE DATA SAVE NSNNUMBER DATA WITHOUT ROUNDING THE DECIMAL PART IN
OBJECTIVE-C -
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- August 15, 2015
i trying save decimal number core data nsnumber object decimal value had saved
rounding digits when enter 5 digit number decimal part. if enter 9999,999
getting save same value database in case of 5 digit (e.g.,10000.999) save 10001
in database. chargefloat=10000.999; value.fees = [nsnumber
numberwithfloat:chargefloat];//value entity object //fees nsnumber but in
database showing value 10001 . i need solution. floats give 6 9 significant
digits, doubles give 15 17 significant digits , nsdecimal gives 38 significant
digits. suggest either use doubles of nsdecimals.
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ANDROID - ROW BACKGROUND CHANGES DUE RECYCLATION. GETVIEW() IMPLEMENTATION
DOESN'T FIX THIS -
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- August 15, 2015
i've been looking lot guides, tutorials , answers here on stack, still can't
figure 1 out. i have custom drawable state. if click on row in listview , gets
highlighted , updates information in database. (that task (habit) has been
performed). works great until start scrolling. i've learnt, required override
getview() method , getitemviewtype() getviewtypecount() . how this? code
habitscursoradapter getview() , other mentioned methods @ moment looks this.
public class habitscursoradapter extends cursoradapter { private layoutinflater
inflater; private context context; public static final int performed = 1; public
static final int not_performed = 0; public habitscursoradapter(context context,
cursor c) { super(context, c, 0); inflater = layoutinflater.from(context);
this.context = context; } @override public void bindview(view view, context
context, cursor cursor) { string habitname = cursor.getstring(cu
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C# - CHECK WHETHER A LINK TO A FILE IS A TXT -
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- August 15, 2015
i have varaible urllist holds directory of supposed entered in text box, want
though, check whether given directory file text file or not, user gets prompted
either cancel actions or give in correct file. code snippet: public static
string urllist = @"c:\users\gbbb\desktop\url.txt"; private string[] _urlrows;
and method sorta started, , realised need for private void loadurls() { if
(urllist == system.text-file) _urlrows = system.io.file.readalllines(@urllist);
} if understand clearly, need use path.getextension method. returns extension of
specified path string. string ext =
path.getextension(@"c:\users\gbbb\desktop\url.txt"); if(ext == ".txt") {
string[] readtext = file.readalllines(@"c:\users\gbbb\desktop\url.txt"); }
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CURL - GETTING THE URL OF REDIRECTED PAGE - PHP -
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- August 15, 2015
i have url i'm trying redirected page:
http://www.hotukdeals.com/visit?m=1650&q=1542029 i tried: $ch1 =
curl_init("http://www.hotukdeals.com/visit?m=1650&q=1542029"); curl_setopt($ch1,
curlopt_followlocation, true); curl_setopt($ch1, curlopt_nobody, true);
curl_exec($ch1); $curl_url = curl_getinfo($ch1, curlinfo_effective_url); echo
$curl_url; i'm getting response, same url:
http://www.hotukdeals.com/visit?m=1650&q=1542029 how can work? thank you. this
should work in cases, unless redirect made javascript.
print_r(get_headers('http://www.hotukdeals.com/visit?m=1650&q=1542029'));
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JAVAFX 2 AND 3D -
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- August 15, 2015
i read java fx has hardware accelerated 3d support. graphics card intel 945g
directx acceleration, directdraw acceleration, agp texture acceleration , open
gl capabilities. but still..
system.out.println(platform.issupported(conditionalfeature.scene3d)); gives me
false. x axis , y axis rotation not work. is there way make work? software based
solution?
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MYSQL - HOW CAN I SEARCH HAVING SEARCH KEY OF MULTIPLE VALUES FROM THE COLUMN OF
A TABLE CONTAINING MULTIPLE VALUES -
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- August 15, 2015
i want create mysql search can take multiple values dropdown(multiple) , search
, match them in 1 column containing multiple values. sample :- column containing
multiple values (in row)= abc pqr xyz and multiple dropdown menu containing abc
xyz pqr def user can select these values in order so problem how can create
search search key should match of values in column. first of there no "drop
downs" in mysql. mysql database, , drop down user interface item. in order
search database multiple items can this: select * mytable mycolumn = 'value1' or
mycolumn = 'value2' or can way, typically slower: select * mytable mycolumn in
('value1','value2','value3') as far creating drop down, topic question. doing on
webpage or application? language? question open ended.
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HADOOP - MAPREDUCE JOB: COMBINER WITHOUT REDUCER -
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- August 15, 2015
i noticed if set number of reducer 0, combiner won't work. possible use combiner
without reducer? thanks. no it's not. specified reducer, combiners not
guaranteed used. combiners strictly optimizations can be, not necessarily,
called before reducers. without reducer these never called.
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FACEBOOK FQL QUERY TO GET USER'S SENT MESSAGES SINCE A TIMESTAMP -
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- August 15, 2015
i'm not familiar facebook fql. i'm looking way see users have received message.
know need ask extended permissions read_mailbox for instance see if message
"hello" has been sent after 2013-05-02 14:00 , recipient userids has been sent
to. input query message "hello" , timestamp "2013-05-02 14:00" current
timestamp. output query list of userids have been sent message "hello" since
timestamp 2013-05-02 14:00 after trial , error found solution: nsstring *query =
[nsstring stringwithformat: @"{" @"'query1':'select thread_id message thread_id
in " @"(select thread_id thread folder_id = 1 , updated_time >= \"%.f\") " @"and
author_id = me() , body = \"%@\"," @"'query2':'select recipients, thread_id
thread thread_id in (select thread_id #query1)'" @"}", self.sendtime,
self.facebooktext];
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ANDROID - TRIGGER EVENT WHEN ASYNCTASK IS COMPLETE USING LISTENER -
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- August 15, 2015
i'm having confusion on how use listeners pass information between classes ,
activities. the scenario this: have task reads data sqlite database , puts data
arraylist passed adapter displays on screen. the question: app crashes when
attempt update listener interface value. doesnt show in logcat...it hangs app.
kindly point out i'm going wrong. - thanks details: have database processing
done class called datbaseroutines , within inner method doing heavy lifting.
method using asynctask not hog main thread. i have created , interface single
method public interface databaseprocesslistener { public void
processingisdone(boolean blnprocessisfinished); } in databaseroutines class
creating private variable private databaseprocesslistener dbprocesslistener;
along setter public void setdbprocesslistener(databaseprocesslistener
dbprocesslistener) { this.dbprocesslistener = dbprocesslistener; } when
processing done, use postexecute method update li
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MAGENTO PASS AND SAVE ADDITIONAL DETAILS FROM CART PAGE INTO ORDERS TABLE -
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- August 15, 2015
i need pass additional parameters along eith products cart page , save order
table whenever order being placed.for example parameterscould custom price or
anything. i have created db field in table "sales_flat_order_item". which best
way accomplish above requirement ? 1) save additional parameters when order
being placed using "sales_order_place_before" event 2) save details in quote
before proceeding checkout moreover event used if save details before proceeding
checkout ? i can not think of best way achieve this. please help. thanks in
advance. take @ http://www.magentocommerce.com/boards/viewthread/19344/ in
config.xml ... <global> <fieldsets> <sales_convert_quote>
<cs_aoc_webid><to_order>*</to_order></cs_aoc_webid> </sales_convert_quote>
<sales_convert_order>
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JAVA - CUSTOM ACTIONBAR TITLE IN ANDROID -
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- August 15, 2015
hey guys want in setting current activity title in custom actionbar. my on
create function: protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main);
final actionbar actionbar = getactionbar();
actionbar.setcustomview(r.layout.actionbar_custom_view_home);
actionbar.setdisplayshowtitleenabled(false); //i guess line below wrong
actionbar.settitle(this.gettitle());
actionbar.setdisplayshowcustomenabled(true);
actionbar.setdisplayuselogoenabled(false);
actionbar.setdisplayshowhomeenabled(false); } actionbar_custom_view_home.xml
<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/linearlayout1" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:gravity="center" > <imageview
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REGEX - HOW TO MATCH LINES NOT ENDING (-1)\R\N -
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- August 15, 2015
i'm trying match first 5 lines, , last line, in sample: -- 2012-09-20 rep +6 =
184 1 12532070 (2) 2 12531806 (5) 2 12531806 (5) -- 2012-09-21 rep +12 = 196 3
125xxxxx (-1) 3 125xxxxx (-1) 16 12557052 (2) leaving following unmatched: 3
125xxxxx (-1) 3 125xxxxx (-1) i've tried following regular expressions:
^.*[^(-1)\r\n].* ^.*[^(-1)].*\r\n ^.*[^\(-1\)\r\n].* ^.*[^\(\-1\)\r\n].*
^.*[?!\(-1)\r\n].* ^(!?.*-1.*\r\n) but none of them want (mostly matching all
lines). my regex skills not brilliant - can point me in right direction? you can
use negative lookahead ^(?!.*\(-1\)$).*$\r\n
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DJANGO - QUERING DATE AND TIME FIELD AND RENDER IN TEMPLATE -
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- August 15, 2015
views.py def new_report(request): user = request.user reports =
report.objects.filter(user=user) today = datetime.datetime.today() reports_today
= reports.filter(created_date_time__year=today.year,
created_date_time__month=today.month, created_date_time__day=today.day)
num_today = len(reports_today) + 1 num_today = str(num_today).zfill(3)
reportform = reportform() if request.method == 'post': reportform =
reportform(request.post) if reportform.is_valid(): report =
reportform.save(commit=false) report.user = user report.created_date_time =
today return render(request, 'incident/new_report.html', { 'newreport_menu':
true, 'reports': reports, 'reportform':reportform, }) models.py class
report(models.model): user = models.foreignkey(user, null=false) inci
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LINUX - SHELL FILE PARSING TO AUTOMATE YOUTUBE UPLOADS -
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- August 15, 2015
i writing small script mass upload videos youtube.. looks this: #! /bin/sh
python --version file in ./*.mp4 ; export title=$(basename "$file" ".mp4") echo
$title "for" $file youtube-upload -m mail@mailer.com -p pass -c category -t
"$title" -d "description" "$file" done where youtube-upload cli based python
uploader.. my question can see i'm taking title file name path, , description
same :(. want write description text or xml file parse it, , upload proper
description each file.. how using shell commands in context? thanks suggestions
have 1 file containing of filename->description mappings: my file.mp4
description file2.mp4 description last file.mp4 description ilied.mp4
description and grab line beginning filename , use rest of line: #! /bin/sh
python --version file in ./*.mp4 ; export title=$(basename "$file" ".mp4") echo
$title
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C# 4.0 - RETRIEVE IMAGE FROM MS ACCESS -
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- August 15, 2015
i want retrieve image ms access database showing in picturebox code code this:
private void button1_click(object sender, eventargs e) { oledbconnection
myconnection = new
oledbconnection(configurationmanager.connectionstrings["connectionstring"].connectionstring);
myconnection.open(); oledbcommand cmd = new oledbcommand("select * [images]
id=1", myconnection); oledbdataadapter da = new oledbdataadapter(cmd); datatable
dt = new datatable(); da.fill(dt); if (dt.rows.count > 0) { if
(dt.rows[0]["aimage"] != dbnull.value) { picturebox.image =
bytearraytoimage((byte[])dt.rows[0]["aimage"]); } } myconnection.close(); }
bitmap bytearraytoimage(byte[] b) { memorystream ms = new memorystream(); byte[]
pdata = b; ms.write(pdata, 0, convert.toint32(pdata.length));
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C# - MYSQLDUMP.EXE NOT TAKING FULL BACKUP OF MYSQL DATABASE -
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- August 15, 2015
i have procedure backing mysql database.and have different mysql servers.
procedure works on of mysql servers.but on of servers won't works proper ,
create backup file size of 1kb. code public void databasebackup(string
exelocation, string dbname) { try { string tmestr = ""; tmestr = dbname + "-" +
datetime.now.tostring("hh.mm.ss.ffffff") + ".sql"; tmestr = tmestr.replace("/",
"-"); tmestr = "c:/" + tmestr; streamwriter file = new streamwriter(tmestr);
processstartinfo proc = new processstartinfo(); string cmd =
string.format(@"-u{0} -p{1} -h{2} {3}", "uid", "pass", "host", dbname);
proc.filename = exelocation; proc.redirectstandardinput = false;
proc.redirectstandardoutput = true; proc.arguments = cmd; proc.useshellexecute =
false; proc.createnowindow =
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JAVA - CHANGING AN ICON IN A JLABEL DYNAMICALLY -
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- August 15, 2015
i having bit of problem changing , icon in jlabel dynamically. first of all,
trying simulating screen sharing operation. on client side, taking screenshots
every second, sending them server. on server side, trying open these pictures in
simple gui. i able send pictures without problem , able them without problem
well. however, gui code have written cannot open pictures. more specifically, if
there picture, able open it, not open picture has come. what doing in server
side is, picture gets server, saving predetermined name. , able open picture
windows' own picture photo viewer. in fact, new picture comes, photo viewer
updates , shows new screenshot. however, having trouble opening screenshots in
jframe. have written program take screenshots in jpg format, send them server ,
open them in gui. having problems opening in gui part. have understood, not open
files coming client. below codes, appreciated. server side, package screencap;
/* * change template, choose tool
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C# - HOW DO I ACCESS A CONTROL INSIDE A XAML DATATEMPLATE? -
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- August 15, 2015
i have flipview: <flipview x:name="models_list"
selectionchanged="selectionchanged"> <flipview.itemtemplate> <datatemplate>
<grid x:name="cv"> <image x:name="img1" source = "{binding modelimage}"
stretch="fill" tag="{binding modeltag}"/> </grid> </datatemplate>
</flipview.itemtemplate> i want find img1 of selected index. while searching
found method on post here: private dependencyobject
findchildcontrol<t>(dependencyobject control, string ctrlname) { int childnumber
= visualtreehelper.getchildrencount(control); (int = 0; < childnumber; i++) {
dependencyobject child = visualtreehelper.getchild(control, i); frameworkelement
fe = child frameworkelement; // not framework element or null if (fe == nu
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CSS - REGARDING DIV SIZE -
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- August 15, 2015
basically, on 1 of pages of website, have div 60% width, in of content stored.
my problem is, when try site on different, lower resolution monitors, of content
in div ends being cut out. i don't want increase width, have no ideas on how fix
issue without doing so. you can use media queries change style rules based on
factors device-width , resolution:
https://developer.mozilla.org/en-us/docs/css/media_queries for example, adjust
font-size in div based on size of viewport
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C# - WINDOWS PHONE APP: IS THERE A WAY TO HAVE A BUTTON START DIALING A PHONE
NUMBER FROM MY APP? -
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- August 15, 2015
i creating app, , want have button can click dial phone number. phone number
chosen me. possible? you can that, using phonecalltask var phonecalltask = new
phonecalltask(); phonecalltask.phonenumber = "123456789"; phonecalltask.show();
just put code in button's event handler.
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QT - HOW TO FIRE AN EVENT ON CORRECT SEQUENCE OF MULTIPLE KEY SEQUENCE? -
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- August 15, 2015
hi have created event based on secret sequence of key. if user presses
ctrl+alt+o event. running code snippet act = new qaction(this);
act->setshortcut(qkeysequence(qt::ctrl + qt::alt + qt::key_o)); connect(act,
signal(triggered()), this, slot(slotclose())); now wish extend secret key. want
user press 2 sequences. ctrl+alt+to ctrl+alt+y. if these 2 sequences fired in
order event fired. i doubt qkeysequences work. sure, can!! all need path
constructor: act->setshortcut(qkeysequence(qt::ctrl + qt::alt + qt::key_o ,
qt::ctrl + qt::alt + qt::key_y));
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HOW CAN I GET DATA FROM A FIELD NAME WHEN THE NAME CHANGES DYNAMICALLY IN
JAVASCRIPT? -
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- August 15, 2015
i have following code: switch (entitytype) { case "exam": entityid =
formdata.examid; idcolumn = 'examid'; break; case "subject": entityid =
formdata.subjectid; idcolumn = 'subjectid'; break; } it's repeated more times
showing 2 case values here. believe it's possible values idcolumn getting
lowercase of entitytype , adding id. there way extract value in formdata field
based on entitytype without having manually code many times. you can replace
whole with idcolumn = entitytype.tolowercase()+'id'; entityid =
formdata[idcolumn]; i'd suggest read mdn's working objects .
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HOW TO REPLACE ALL NEW LINES OF STRING WITH `<BR>` IN PHP? -
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- August 15, 2015
there confusion \n , \r. there lot's of questions in stack differences between
\n , \r. in nut shell confusions/questions are: is \r\n equal \n\r? is \r\n
cause 2 new lines? is \r cause new line in output? how can replace new lines
<br> tag in php? not strings has \r or \n explicitly . suppose have textarea ,
user inputs characters including enter of keyboard. no \r or \n entered new
lines exist. how remove new lines? microsoft windows / ms-dos: \r\n acorn bbc ,
risc os spooled text output: \n\r apple macintosh os 9 , earlier: \r unix (e.g.,
linux), apple os x , higher: \n replace -> nl2br more on here if new lines
exists in textarea \n,\r or \r\n present! these control characters not
outputted. to remove them try: $string = str_replace(array("\r\n", "\n\r", "\r",
"\n"), "", $string);
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ALTERNATIVE TO HEAP ALLOCATED STRINGS IN C (WITH LONG LIFETIMES) -
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- August 15, 2015
is possible use "temporary string objects" in c program? for example, have
reasonably large array of char * objects (part of struct), using heap allocated
memory. have opportunity reduce program's memory usage, since of these names can
determined without using explicit character array (although not of them can). in
c++, i'd create api returns std::string object (by value) , done it. in c, can
come no solutions i'm thrilled about. advice? here's code, requeted: struct foo
{ char *name; ... }; extern foo* global_foo_array; /* in .h file */ void
setup_foo(void) { int i; global_foo_array = (foo*) malloc ( get_num_foo() *
sizeof(foo) ); (i = 0; < get_num_foo_with_complex_name(); ++i) {
global_foo_array.name[i] = malloc ( ... ); } (i =
get_num_foo_with_complex_name(); < get_num_foo(); ++i) { char buf[100]; sprintf(
buf, "foo #%d", ); global_foo_array[i].name = strdup( b
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C++ - OPERATOR<< DOESN'T FIND MATCH -
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- August 15, 2015
class shape { virtual void out() = 0; }; std::ostream& operator<<(std::ostream&
os, shape& a) { return os << a.out(); } i want create abstract base class , able
use cout << triangle/square etc. later on, triangle, square being derived
classes shape. it works fine if return os << "test"; i'm guessing it's a.out()
not getting called properly, can't seem pinpoint problem. the out member
function returns void , doesn't return object pass std::ostream::operator<< .
perhaps want return std::string ?
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ANDROID - CAN SOME 1 POINT OUT THE NULL POINTER EXCEPTION -
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- August 15, 2015
i have edited code , null pointer error pointing inside loop less errors before
still dont't know why nullpointer called. public class searchlist extends
listactivity { @override protected void oncreate(bundle savedinstancestate) { //
todo auto-generated method stub super.oncreate(savedinstancestate); new
loadsomestuff().execute(); } public class loadsomestuff extends
asynctask<string, integer, string[]> { progressdialog dialog; protected void
onpreexecute() { dialog = new progressdialog(searchlist.this);
dialog.setprogressstyle(progressdialog.style_spinner); dialog.setmax(100);
dialog.show(); } @override protected string[] doinbackground(string... arg0) {
// todo auto-generated method stub for(int =0; i<20; i++) { publishprogress(5);
try { thread.sleep(80); } catch(interruptedexception e) { e.printstacktrace();
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PHP - WOULD THIS SHORTHAND WORK WITHIN A FUNCTION FOR THE RETURN? -
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- August 15, 2015
would below work? i'm not able test it, , wondering (as use little shorthand
coding techniques) if you're able use shorthand return within function? can't
think of reason why not work, couldn't find online verify. function
isonline($ip, $port, $timeout = 1) { return (($fp = fsockopen($ip, $port, $i,
$j, $timeout)) ? fclose($fp) : false); } the fclose() function should return
true, primary return true, correct? of course can accomplish proper way,
learning new ways things.
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GET PATH AND QUERY STRING FROM URL USING JAVASCRIPT -
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- August 15, 2015
i have this: http://127.0.0.1:8000/found-locations/?state=--&km=km i want this:
found-locations/?state=--&km=km how do in javascript? i tried
window.location.href giving me whole url tried
window.location.pathname.substr(1) giving me found-locations/ use
location.pathname , location.search :
(location.pathname+location.search).substr(1)
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SPRING MVC- PAGE NOT FOUND ERROR -
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- August 15, 2015
i'm trying implement variant of muliple file upload tutorial, , having issue
getting application run. i created spring mvc project in eclipse using template.
the controller has been implemented by @controller public class
fileuploadcontroller { @requestmapping(value = "/show", method =
requestmethod.get) public string displayform() { return "uploadform"; }
@requestmapping(value = "/save", method = requestmethod.get) public string
save(@modelattribute("uploadform") fileuploadform uploadform, model map) { //get
file name , copy server location return "uploadsuccess" } where uploadform ,
uploadsuccess jsp pages within views my web.xml file defined as
<display-name>samplefileupload</display-name> <servlet>
<servlet-name>spring</servlet-name> <servlet-class>
org.springframework.web.servlet.dispatcherservlet </se
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JSON - ENCODE/REPLACE BLOB WITH BASE64 IN PHP ARRAY -
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- August 15, 2015
iam building html5 app gets data json encoded php webservice. have small images
stored in database , return them base64 encoded json result. currently mysql
field , return json this: $query = "select * `news` "; $posts = array();
if(mysql_num_rows($result)) { while($post = mysql_fetch_assoc($result)) {
$posts[] = array('post'=>$post); } } header('content-type: text/javascript');
echo json_encode(array('posts'=>$posts)); i have field called picture. convert
picture data in array posts[] base64 can return data json without http request
picture. my php skills not thought like: $posts['picture'] =
base64_encode($posts['picture']); but need convert every picture base64, maybe
better put in while loop: while($post = mysql_fetch_assoc($result)) { if($post
== 'picture'){ $post = base64_encode($post); } $posts[] = array('post'=>$post);
} can work? or there other/better
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PYTHON - WRITING MORE COMPACT VERSION OF MY FUNCTION -
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- August 15, 2015
i have code below in more compact way ( 1 or 2 lines ) foo.txt: a:1 b:2 c:3
code: >>> r = {} >>> in open('foo.txt','r').readlines(): ... k,v = i.split(':')
... r[k]=v.strip() how about: in [43]: open("foo.txt") fd:
my_dict=dict(x.strip().split(":") x in fd) ....: in [44]: my_dict out[44]: {'a':
'1', 'b': '2', 'c': '3'} another approach: in [46]: open("foo.txt") fd:
my_dict={k:v k,v in (x.strip().split(':') x in fd)} ....: in [47]: my_dict
out[47]: {'a': '1', 'b': '2', 'c': '3'}
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JAVA - WHY CAN'T I DELETE THE XML FILE I CREATED? -
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- August 15, 2015
my first question speed of stax writer. have problem: can't delete xml file
created, delete(); it still being used somehow. have tried delete manually not.
@ , of file creation call method close() streamwriter. i trying delete file
right after method done, in file. like: startstopwath;createxml();
stopstopwatch; file.delete() have add more there? here code: import java.io.*;
import java.util.*; import javax.xml.stream.*; import
org.springframework.util.stopwatch; public class staxvytvor { public static
string subor = "test.xml"; public static void main(string[] args) { int num
=600000; try { string encoding = "utf-8"; xmloutputfactory f =
xmloutputfactory.newinstance(); xmlstreamwriter w = f.createxmlstreamwriter(new
bufferedoutputstream(newfileoutputstream(subor)), "utf-8");
w.writestartdocument(encoding, "1.0"); w.writecharacters("\r\
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USING CANVAS DRAWIMAGE IN CHROME EXTENSION CONTENT SCRIPT -
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- August 15, 2015
i'm trying use drawimage on canvas context in injected content script chrome
extension. testcanvas = document.createelement('canvas'); testcontext =
testcanvas.getcontext('2d'); var image = new image();
testcontext.drawimage(image, 0, 0); in chrome 26 works ok, in dev channel
(chrome 28) seams broken got message: uncaught typeerror: type error when move
same script directly background page, works without problem. i think can related
security related change failed find relevant information. this bug, should
report it. more testing reveals in chrome 28.0.1498.0, image constructor not
create valid htmlimageelement instance (as seen in screenshot below). code run
in context of content script. same code works fine on regular pages , in
extension's process (background page). to work around problem, use
document.createelement('img') instead of new image() . and don't forget report
bug @ https://code.google.com/p/chr
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CLOJURE MACRO THAT DOESN'T NEED SPACE NEXT TO IT -
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- August 15, 2015
trying create macro form of haskell's lambda syntax, i'm pretty close except 1
last tweak, / (which should \, can't grumble..) needs space next it, there way
make macro doesn't need space between , it's first argument? for instance:
(reduce (/x y -> x y) [1 2 3]) instead of: (reduce (/ x y -> x y) [1 2 3]) i
suspect isn't possible, way know sure ask people know, what's word? no. macros
cannot change lexical syntax of language. requires read-macros, clojure doesn't
have.
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TWITTER BOOTSTRAP - HOW TO INTEGRATE FALGUN THEME INTO RAILS APPLICATION? -
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- August 15, 2015
my client wants me use theme:
http://themeforest.net/item/falgun-metro-style-bootstrap-admin-dashboard/4257951
how supposed it? cant find tutorials using custom themes in general.
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DIRECTX - C# DIRECT X 9.0C - MESH INTERSECT -
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- August 15, 2015
i want collide vector of mesh using up-vector. i have position , vector.. booth
calculate far vector public vector3 setplayertoground(matrix object, matrix
player, mesh groundobject) { vector3 intersectvector = new vector3(0, 0, 0); if
(groundobject != null) { vector3 player_up = new vector3(player.m12, player.m22,
player.m32); vector3 playerpos = new vector3(player.m14, player.m24,
player.m34); vector3 playerpos_far = playerpos - player_up ;
gameengine.m_device.transform.world = object; intersectinformation
closestintersection; if (groundobject.intersect(playerpos, playerpos_far, out
closestintersection)) { intersectvector = player_up + (playerpos_far *
closestintersection.dist); } } return intersectvector; } well if vector3
playerpos_far = pl
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ANDROID - NEED HELP FOR FOREIGN KEY -
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- August 15, 2015
db.execsql(" create table " + kk_airlinebook + " (" + key_id + " integer primary
key autoincrement, " + key_srno + " integer, " + key_bname + " text , " +
key_bookingdate + " text, " + key_pickupaddress + " text, " + key_city + " text,
" + key_airporttype + " text, "+ key_trip + " text, " + key_cabr + " text , " +
key_flightdate + " text, " + key_flighttime + " text, " + key_cabdate + " text,
" + key_pickuptime + " text, " + key_totalseats + " integer, " + key_charges + "
integer , " + "foreign key ," + key_srno + " references kk_registration , " +
key_id +");"); log cat: 05-04 20:06:36.034: e/sqlitelog(26155): (1) near ",":
synta
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C++ - CREATING THIS FUNCTION TEMPLATE -
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- August 15, 2015
i have simple class template tuples of vectors: template <typename... t> struct
tupleofvectors { std::tuple<std::vector<t>...> tuple; }; i can use this:
tupleofvectors<double, std::string> tuple; auto vec0 = std::get<0>(tuple.tuple);
vec0.push_back(1.2); auto vec1 = std::get<1>(tuple.tuple);
vec1.push_back("foo"); i want encapsulate class template itself. how i'd use
class template: tuple.vec<0>.push_back(1.2); tuple.vec<1>.push_back("foo"); how
develop such vec() template member function? template <typename... ts> struct
tupleofvectors { std::tuple<std::vector<ts>...> tuple; template< size_t n > auto
vec() -> decltype( std::get<n>(tuple) ) { return std::get<n>(tuple); } };
tupleofvectors<int, short, double, float> t; t.vec<3>().push_back( 3.14f );
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JAVASCRIPT - HOW TO DESELECT A HTML BUTTON TAG WITH A SIMPLE CHROME EXTENSION -
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- August 15, 2015
i have created chrome extension simple popup.html file contains button tag first
element inside body. when test on chrome 26 under os x, each time click on
extension icon triggers popup, button seems selected/focused given see blue
halo. cannot figure out how disable auto focus. seems autofocus applied on first
tag popup.html file. tried apply blur() on button instance retrieved
document.getelementbyid not work. is there solution? workaround? alternative?
the solution found consists of adding tabindex="1" on html tag. tried put focus
on other elements or use autofocus="autofocus" not work.
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PYTHON - HOW TO USE THE A K-FOLD CROSS VALIDATION IN SCIKIT WITH NAIVE BAYES
CLASSIFIER AND NLTK -
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- August 15, 2015
i have small corpus , want calculate accuracy of naive bayes classifier using
10-fold cross validation, how can it. your options either set or use
nltk-trainer since nltk doesn't directly support cross-validation machine
learning algorithms . i'd recommend using module if want write own code
following. supposing want 10-fold , have partition training set 10 subsets,
train on 9/10 , test on remaining 1/10 , , each combination of subsets ( 10 ).
assuming training set in list named training , simple way accomplish be,
num_folds = 10 subset_size = len(training)/num_folds in range(num_folds):
testing_this_round = training[i*subset_size:][:subset_size] training_this_round
= training[:i*subset_size] + training[(i+1)*subset_size:] # train using
training_this_round # evaluate against testing_this_round # save accuracy # find
mean accuracy on rounds
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HASKELL - HOW TO IMPLEMENT AND USE THE SUB-MODES FEATURE FROM
SYSTEM.CONSOLE.CMDARGS -
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- August 15, 2015
i create kind of swiss-knife tool specific domain, , "cabal" or "darcs"
command-line interface looks perfect. using on-line tutorials implement simple
"hello, world" program. implemented more sophisticated solution modes , when
well. but now, explore "sub-modes" have understanding of possibilities, , i'm
stuck. not find tutorial, example or detailed description of feature. how
implement , use submodes feature? i want clarify understand modes, it's submodes
not clear me. the cmdargs tutorial has examples sub-modes. documentation modes
function clear. in fact, google search "cmdargs modes" reveals quite a few more
tutorials covering this.
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