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Unresolved External symbol

- by jay

Hello, I am getting a linking error, and I'm not sure what its referring to. Here is the error 1Main.obj : error LNK2019: unresolved external symbol "public: void __thiscall BinaryHeap,class std::allocator ,class Comp,class std::allocator ::insert(class Item,class std::allocator const &)" (?insert@?$BinaryHeap@V?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@V?$Comp@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@@QAEXABV?$Item@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@@Z) referenced in function "public: void __thiscall PriorityQueue,class std::allocator ::insertItem(int,class std::basic_string,class std::allocator const &)" (?insertItem@?$PriorityQueue@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@@QAEXHABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) The code is rather long, however if you want me to post it I will. thanks

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Oracle T4CPreparedStatement memory leaks?

- by Jay

A little background on the application that I am gonna talk about in the next few lines: XYZ is a data masking workbench eclipse RCP application: You give it a source table column, and a target table column, it would apply a trasformation (encryption/shuffling/etc) and copy the row data from source table to target table. Now, when I mask n tables at a time, n threads are launched by this app. Here is the issue: I have run into a production issue on first roll out of the above said app. Unfortunately, I don't have any logs to get to the root. However, I tried to run this app in test region and do a stress test. When I collected .hprof files and ran 'em through an analyzer (yourKit), I noticed that objects of oracle.jdbc.driver.T4CPreparedStatement was retaining heap. The analysis also tells me that one of my classes is holding a reference to this preparedstatement object and thereby, n threads have n such objects. T4CPreparedStatement seemed to have character arrays: lastBoundChars and bindChars each of size char[300000]. So, I researched a bit (google!), obtained ojdbc6.jar and tried decompiling T4CPreparedStatement. I see that T4CPreparedStatement extends OraclePreparedStatement, which dynamically manages array size of lastBoundChars and bindChars. So, my questions here are: Have you ever run into an issue like this? Do you know the significance of lastBoundChars / bindChars? I am new to profiling, so do you think I am not doing it correct? (I also ran the hprofs through MAT - and this was the main identified issue - so, I don't really think I could be wrong?) I have found something similar on the web here: http://forums.oracle.com/forums/thread.jspa?messageID=2860681 Appreciate your suggestions / advice.

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Rails: Ajax: Changes Onload

- by Jay Godse

Hi. I have a web layout of a for that looks something like this <html> <head> </head> <body> <div id="posts"> <div id="post1" class="post" >  </div> <div id="post2" class="post" >  </div>  <div id="post99" class="post" >  </div> </div> </body> </html> I would like to be able to load and render the page with a blank , and then have a function called when the page is loaded which goes in and load up the posts and updates the page dynamically. In Rails, I tried using "link_to_remote" to update with all of the elements. I also tweaked the posts controller to render the collection of posts if it was an ajax request (request.xhr?). It worked fine and very fast. However the update of the blank div is triggered by clicking the link. I would like the same action to happen when the page is loaded so that I don't have to put in a link. Is there a Rails Ajax helper or RJS function or something in Rails that I could use to trigger the loading of the "posts" after the page has loaded and rendered (without the posts)? (If putsch comes to shove, I will just copy the generated JS code from the link_to_remote call and have it called from the onload handler on the body).

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jquery addresses and live method

- by Jay

//deep linking $.fn.ajaxAnim = function() { $(this).animW(); $(this).html('<div class="load-prog">loading...</div>'); } $("document").ready(function(){ contM = $('#main-content'); contS = $('#second-content'); $(contM).hide(); $(contM).addClass('hidden'); $(contS).hide(); $(contS).addClass('hidden'); function loadURL(URL) { //console.log("loadURL: " + URL); $.ajax({ url: URL, beforeSend: function(){$(contM).ajaxAnim();}, type: "POST", dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contM).html(data); $('.post-content').initializeScroll(); } }); } // Event handlers $.address.init(function(event) { //console.log("init: " + $('[rel=address:' + event.value + ']').attr('href')); }).change(function(event) { evVal = event.value; if(evVal == '/'){return false;} else{ $.ajax({ url: $('[rel=address:' + evVal + ']').attr('href'), beforeSend: function(){$(contM).ajaxAnim();}, type: "POST", dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contM).html(data); $('.post-content').initializeScroll(); }}); } //console.log("change"); }) $('.update-main a, a.update-main').live('click', function(){ loadURL($(this).attr('href')); return false; }); $(".update-second a, a.update-second").live('click', function() { var link = $(this); $.ajax({ url: link.attr("href"), beforeSend: function(){$(contS).ajaxAnim();}, type: "POST", dataType: 'html', data: {post_loader: 1}, success: function(data){ $(contS).html(data); $('.post-content').initializeScroll(); }}); return false; }); }); I'm using jquery addresses to update content while maintaining a useful url. When clicking on links in a main nav, the url is updated properly, but when links are loaded dynamically with ajax, the url address function breaks. I have made 'click' events live, allowing for content to be loaded via dynamically loaded links, but I can't seem to make the address event listener live, but this seems to be the only way to make this work. Is my syntax wrong if I change this : $.address.change(function(event) { to this: $.address.live('change', function(event) { or does the live method not work with this plugin?

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Suggestion for a Data Structure!

- by Jay

I have the following requirements for a data structure: Direct access to an element with the help of a key (Key will be an integer, range is also same as integer range) Avoid memory allocation in chunks (Allocate contigous memory for the data structure including the data) Should be able to grow the data structure size dynamically Which data structure would you suggest? Any pointers in the direction will also be of help.

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Refresh/Reset View

- by Jay

Hi, I'm using MVP in WPF and I came across a design doubt and I would to get your opinion on this: At some point I need to refresh my view and perform the same initial queries, like when the view was loading. The view's DataContext is my presenter and I have a couple of collections and other variables that are bound to the view. When I need to refresh the view, I'm clearing the collections and the variables and setting the DataContext to null. After that I fetch new data, populate the collections and set the DataContext. Is this the best way to achieve this? The issue with this, is that i'm affraid that when my app grows bigger I forget to reset some variable...the ideal would be to reload the view again in some way without having to worry with the variables I have. Best regards.

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Running a GWT application inside an IFRAME from an ASP.NET 3.5 app?

- by Jay Stevens

We are looking at integrating a full-blown GWT (Google Web Toolkit 2.0) application with an existing ASP.NET 3.5 application. My first gut reaction is that this is a horrible frankenstein idea. However, the customer has insisted that we use this application developed by a third-party. I have almost NO CONTROL over the development of the GWT app. My first thought is to actually attempt to embed this in an iFrame. Because GWT is running under Tomcat/Jakarta, it is hosted on a different server from the .NET app so the iFrame src will be to a URL on the other machine. I need to utilize our own ASP.NET authorization scheme to restrict access to the embedded GWT application. The GWT app also uses embedded java applets, which don't seem to be working right now inside the iframe. Any major problems with this approach that anyone can see? Will GWT work on an iframe while hosted on a different machine?

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Bluray Burner in Java - Where to start?

- by Jay

Like the subject of this post suggests, I am looking at developing a suite like nero which helps burn bluray discs. I am kind of clueless as to where to start. Is there anything in Java API that lets you do this? If I were to start from scratch, would I need to start with the bluray disc spec? Are there any open source tools which are already doing this? I tried searching at sourceforge.net and found nothing useful. Any help is much appreciated.

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OSLO, ANTLR or other parser grammar, for parsing QUERY EXPRESSION

- by Jay Allard

Greetings I'm working on a project that requires me to write queries in text form, then convert them to some easily processed nodes to be processed by some abiguous repository. Of everything there, the part I'm least interested is the part that converts the text to nodes. I'm hoping it's already done somewhere. Because I'm making stuff up as I go, I chose to use a LINQish expression syntax. from m in Movie select m.A, m.B I started parsing it manually and got the basics, but it's pretty cheesy. I'm looking for the better solution. I made some progress using MGrammar, but it would be nice if such a thing already existed. Does anyone know of anything that already does this? I looked for existing ANTLR templates, but no luck. Thanks for the help.

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Oracle sample data problems

- by Jay

So, I have this java based data trasformation / masking tool, which I wanted to test out on Oracle 10g. The good part with Oracle 10g is that you get a load of sample schemas with half a million records in some. The schemas are : SH, OE, HR, IX and etc. So, I installed 10g, found out that the installation scripts are under ORACLE_HOME/demo/scripts. I customized these scripts a bit to run in batch mode. That solves one half of my requirement - to create source data for my testing my data transformation software. The second half of the requirement is that I create the same schemas under different names (TR_HR, TR_OE and so on...) without any data. These schemas would represent my target schemas. So, in short, my software would pick up data from a table in a schema and load it up in to the same table in a different schema. Now, I have two issues in creating my target schema and emptying it. I would like this in a batch job. But the oracle scripts you get, the sample schema names are not configurable. So, I tried creating a script, replacing OE with TR_OE, HR with TR_HR and so on. However, this approach is kind of irritating coz the sample schemas are kind of complicated in the way they are created; Oracle creates synonyms, views, materialized views, data types and lot of weird stuff. I would like the target schemas (TR_HR, TR_OE,...) to be empty. But some of the schemas have circular references, which would not allow me to delete data. The only work around seems to be removing certain foreign keys, deleting data and then adding the constraints back. Is there any easy way to all this, without all this fuss? I would need a complicated data set for my testing (complicated as in tables with triggers, multiple hierarchies.. for instance.. a child table that has children up to 5 levels, a parent table that refers to an IOT table and an IOT table that refers to a non-IOT table etc..). The sample schemas are just about perfect from a data set perspective. The only challenge I see is in automating this whole process of loading up the source schemas, and then creating the target schemas and emptying them. Appreciate your help and suggestions.

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Good places to share and showcase software on the web?

- by jay

Quite simply: is there a place such as DeviantArt, but purely for the purpose of sharing software (and source if preferred)? I'm aware that DA has plenty of software, but only related to customisations and UI hacks. I recently came across some really useful apps I had made from way back and besides posting it on an online code hosting site or a personal portfolio that no one will ever find, is there some more community-ish places on the internet I've missed out on where coding mercenaries share and show off?

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DPAPI encryted section returns null

- by Jay

Hi, I am encrypting the appSettings and the connectionStrings sections in the app.config file. But when I try to read the value, its always returning null. I am not sure if I am missing something. I thought the decryption was transparent. Has anyone else had any success with reading DPAPI protected sections in the app.config file.

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NFOP performance problem

- by Jay Stevens

We're using NFOP in a project (C#, ASP.NET 2.0) to ultimately return PDF files to the user. The process currently goes like this: Stored Procedure - XML XML - XSLT - XSL-FO XSL-FO - NFOP - PDF This works fine, the PDF is generated BEAUTIFULLY. The problem is that it takes 300+ seconds to do it. The ANTS profiler indicates that the problem is sitting in the driver.run() method inside of NFOP. It's not like this is a gargantuan amount of data, the size of the xsl-fo source going into the nfop driver object is ~980k. What's the most likely source and resolution of this problem? ANY hints or tips or answers are most appreciated, we were supposed to head to VA scan at 11 am. :|

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Object not declared in scope

- by jay

I'm using Xcode for C++ on my computer while using Visual Studio at school. The following code worked just fine in Visual Studio, but I'm having this problem when using Xcode. clock c1(2, 3, 30); Everything works just fine, but it keeps giving me this error that says "Expected ';' before 'c1'" Fine, I put the ';' .. but then, it gives me this error: "'c1' was not declared in this scope" Here's the whole header code: #include <iostream> using namespace std; class clock { private: int h; int m; int s; public: clock(int hr, int mn, int sec); }; clock::clock(int hr, int mn, int sec) { h = hr; m = mn; s = sec; } Here's the whole .cpp code: #include "clock.h" int main() { clock c1(2, 3, 30); return 0; } I stripped everything down to where I had the problem. Everything else, as far as I know, is irrelevant since the problem remains the same with just the mentioned above. Thanks in advance!

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How do I vertically align an item within a list using relative layout?

- by Jay Askren

I am using a list view in Android 1.5 to show a list of images and text next to the image. I am trying to vertically center the text but the text is at the top of the row instead of centered. Below is my layout: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/row" android:layout_width="fill_parent" android:layout_height="wrap_content" android:padding="10dip"> <ImageView android:id="@+id/item_image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingRight="10dip" android:src="@drawable/default_image" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:gravity="center_vertical"/> <TextView android:id="@+id/item_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/item_image" android:layout_alignParentTop="true" android:layout_alignParentBottom="true" android:layout_centerVertical="true" android:gravity="center_vertical" /> </RelativeLayout> It seems strange that I need to set alignParentTop="true" when I'm trying to vertically center the text, but if I don't the text does not even show up. What am I doing wrong?

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Error calling webservice using JSONP + jquery with IE on remote domain

- by Jay Heavner

I have a .Net webservice on my app server that returns data formatted as JSONP. I have an HTML test client on that server which works fine using IE, Firefox, & Chrome. If I copy the same HTML to my workstation or deploy to my webserver it works with Firefox & Chrome but in IE I'm getting two javascript errors. Message: Object doesn't support this property or method Line: 1 Char: 1 Code: 0 URI: http://mydomain/WebServices/LyrisProxy/Services/Lyris/JSONP/Lyris.asmx/AddUser?lyrisInstance="1"&email="[email protected]"&fullName="My Name"&lyrisList="listname"&format=json&callback=jsonp1274109819864&_=1274109829665 Message: Member not found. Line: 59 Char: 209 Code: 0 URI: http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js I'm kind of at loss as to what to do to fix this.

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How to handle JSON response using SBJSON iPhone?

- by Jay Mehta

I am receiving the below response from my web service? Can any one has idea how to handle it using SBJSON? { "match_details" : { "score" : 86-1 "over" : 1.1 "runrate" : 73.71 "team_name" : England "short_name" : ENG "extra_run" : 50 } "players" : { "key_0" : { "is_out" : 2 "runs" : 4 "balls" : 2 "four" : 1 "six" : 0 "batsman_name" : Ajmal Shahzad * "wicket_info" : not out } "key_1" : { "is_out" : 1 "runs" : 12 "balls" : 6 "four" : 2 "six" : 0 "batsman_name" : Andrew Strauss "wicket_info" : c. Kevin b.Kevin } "key_2" : { "is_out" : 2 "runs" : 20 "balls" : 7 "four" : 4 "six" : 0 "batsman_name" : Chris Tremlett * "wicket_info" : not out } } "fow" : { "0" : 40-1 } } I have done something like this:

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Showing Dynamic Content within a Facebook Page

- by Jay

Hi all, I need to have some content displayed in a Facebook Page (I believe these are also referred to as Business Pages?). However, some of these content will be dynamic. What I mean by that is, some of the content will be taken from an existing web application. I've looked into using Static FBML (which allows us to have tabs in the profile page with FBML in it). These no longer allow iframes. Does work in this instance (as I've not been able to get it to work either). Are there any other tags which can be used for this purpose? In short, is there a way to obtain data from an external source and display those content within a Facebook Page (Tab)? Thank you very much in advance for any light that you can shed on this issue. Cheers~

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Has anywone run sqlanywhere (any version) in a virtural machine

- by Jay Turner

My clients it department wants to move the database for my application to virtual partition. If you have done this what are the issues you ran into (performance, backups, replication). Currently running ASA 8 but upgrading to ASA 11 in near future.

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SQL Server SELECT stored procedure according to combobox.selectedvalue

- by Jay

In order to fill a datagridview according to the selectedvalue of a combobox I've tried creating a stored procedure. However, as I'm not 100% sure what I'm doing, depending on the WHERE statement at the end of my stored procedure, it either returns everything within the table or nothing at all. This is what's in my class: Public Function GetAankoopDetails(ByRef DisplayMember As String, ByRef ValueMember As String) As DataTable DisplayMember = "AankoopDetailsID" ValueMember = "AankoopDetailsID" If DS.Tables.Count > 0 Then DS.Tables.Remove(DT) End If DT = DAC.ExecuteDataTable(My.Resources.S_AankoopDetails, _Result, _ DAC.Parameter(Const_AankoopID, AankoopID), _ DAC.Parameter("@ReturnValue", 0)) DS.Tables.Add(DT) Return DT End Function Public Function GetAankoopDetails() As DataTable If DS.Tables.Count > 0 Then DS.Tables.Remove(DT) End If DT = DAC.ExecuteDataTable(My.Resources.S_AankoopDetails, _Result, _ DAC.Parameter(Const_AankoopID, AankoopID), _ DAC.Parameter("@ReturnValue", 0)) DS.Tables.Add(DT) Return DT End Function This is the function in the code behind the form I've written in order to fill the datagridview: Private Sub GridAankoopDetails_Fill() Try Me.Cursor = Cursors.WaitCursor dgvAankoopDetails.DataSource = Nothing _clsAankoopDetails.AankoopDetailsID = cboKeuze.SelectedValue dgvAankoopDetails.DataSource = _clsAankoopDetails.GetAankoopDetails Catch ex As Exception MessageBox.Show("An error occurred while trying to fill the data grid: " & ex.Message, "Oops!", MessageBoxButtons.OK) Finally Me.Cursor = Cursors.Default End Try End Sub And finally, this is my stored procedure: (do note that I'm not sure what I'm doing here) USE [Budget] GO /****** Object: StoredProcedure [dbo].[S_AankoopDetails] Script Date: 04/12/2010 03:10:52 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[S_AankoopDetails] ( @AankoopID int, @ReturnValue int output ) AS declare @Value int set @Value =@@rowcount if @Value = 0 begin SELECT dbo.tblAankoopDetails.AankoopDetailsID, dbo.tblAankoopDetails.AankoopID, dbo.tblAankoopDetails.ArtikelID, dbo.tblAankoopDetails.Aantal, dbo.tblAankoopDetails.Prijs, dbo.tblAankoopDetails.Korting, dbo.tblAankoopDetails.SoortKorting, dbo.tblAankoopDetails.UitgavenDeelGroepID FROM dbo.tblAankoopDetails INNER JOIN dbo.tblAankoop ON dbo.tblAankoopDetails.AankoopID = dbo.tblAankoop.AankoopID INNER JOIN dbo.tblArtikel ON dbo.tblAankoopDetails.ArtikelID = dbo.tblArtikel.ArtikelID INNER JOIN dbo.tblUitgavenDeelGroep ON dbo.tblAankoopDetails.UitgavenDeelGroepID = dbo.tblUitgavenDeelGroep.UitgavenDeelGroepID WHERE dbo.tblAankoopDetails.Deleted = 0 and dbo.tblAankoopDetails.AankoopID = @AankoopID ORDER BY AankoopID if @@rowcount >0 begin set @ReturnValue=999 end else begin set @ReturnValue=997 end end if @Value >0 begin --Dit wil zeggen dat ik een gebruiker wil ingeven die reeds bestaat. (998) set @ReturnValue=998 end Does anyone know what I need to do to resolve this?

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Detect WebKit Version 525 and Below With RegEx

- by Jay

I'm no good at Regular Expressions, really! I would like to specifically detect WebKit browsers below version 525. I have a regular expression [/WebKit\/[\d.]+/.exec(navigator.appVersion)] that correctly returns WebKit/5….…, really, I'd like it to return only the version number, but if the browser isn't WebKit, return null, or better still 0. For example, if the browser was Trident, Presto or Gecko, return null, whereas if the browser is WebKit, return it's version number. To clarify, I would like the regular expression to check if navigator.appVersion contains WebKit and if it does not, return null, if it does, return the version number. I appreciate all your help! Please let's keep this focused, let's not flirt with jQuery or the sort, it's overkill in this scenario.

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Getting minimum - Min() - for DateTime column in a DataTable using LINQ to DataSets?

- by Jay Stevens

I need to get the minimum DateTime value of a column in a DataTable. The DataTable is generated dynamically from a CSV file, therefore I don't know the name of that column until runtime. Here is code I've got that doesn't work... private DateTime GetStartDateFromCSV(string inputFile, string date_attr) { EnumerableRowCollection<DataRow> table = CsvStreamReader.GetDataTableFromCSV(inputFile, "input", true).AsEnumerable(); DateTime dt = table.Select(record => record.Field<DateTime>(date_attr)).Min(); return dt; } The variable table is broken out just for clarity. I basically need to find the minimum value as a DateTime for one of the columns (to be chosen at runtime and represented by date_attr). I have tried several solutions from SO (most deal with known columns and/or non-DateTime fields). What I've got throws an error at runtime telling me that it can't do the DateTime conversion (that seems to be a problem with Linq?) I've confirmed that the data for the column name that is in the string date_attr is a date value.

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How to add event log category in Windows Server 2008?

- by Jay

I have created a service plan to run on Windows server 2008. When I test the service in my Windows XP, the event log category can be created properly. However, It doesn't work on server 2008. I run the service as administrator account already. private EventLog __eventLog; if (!EventLog.SourceExists("MyEventLogCat")) EventLog.CreateEventSource("MyEventLogCat", "MyEventLogCat"); __eventLog = new EventLog(); __eventLog.Source = "MyEventLogCat"; __eventLog.Log = "MyEventLogCat"; Thanks.

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Perl WordPress::XMLRPC categories not being set.

- by Jay

The following code works fine to upload a new post to a WordPress blog but for the life of me I can't seem to get the categories to be set. The categories exist. I've tried all lower case, tried case-matching, tried the slug version. Nothing works. No matter how I try passing the categories, the post gets assigned only to the default category. I've scoured the web to find other pieces of sample code and none mention the actual code semantics of how to assign post to certain categories using the WordPress::XMLRPC module. use WordPress::XMLRPC; my $o = WordPress::XMLRPC-new; $o-username('username'); $o-password('password'); $o-proxy('http://blogdomain.com/xmlrpc.php'); $o-server() || die "$!"; my $hashref = { 'title' = 'Test New Post 999 555456782', 'categories' = ['Categorie1', 'Categorie2'], 'description' = '<pHere is the content</p', 'mt_keywords' = 'tag1, tag2, tag3', 'mt_allow_comments' = 1, }; my $ID = $o-newPost($hashref, 1);

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Page Lifecycle - Using FindControl to reference a control created programatically during page load

- by Jay Wilde

Hi, I'm creating some text boxes on my form programatically which I need to reference later using FindControl. I've put the FindControl instruction in the page load method after the code which creates them but get an error: "Object reference not set to an instance of an object." I assume this is because the textbox controls are not created until later in the lifecycle and therefore cannot be referenced from within Page_Load. Can someone advise where in my code-behind I would need to place the FindControl instruction so that it can find these programatically created text boxes?

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