BreakPoint Not Working In Init - InitComplete - PreLoad Events In Page With C# In VS2008

Mar 1, 2011

BreakPoint not working in Init, InitComplate, PreLoad events in ASP.NET page with C# in VS2008. But it is working for Page_Load event.

public partial class _Default : System.Web.UI.Page
protected void Page_Load(object sender, EventArgs e)
protected void InitializeComponent()
this.PreLoad += new System.EventHandler(this._Default_PreLoad);
this.InitComplete += new System.EventHandler(this._Default_InitComplete);
this.Init += new System.EventHandler(this._Default_Init);
this.PreRender += new System.EventHandler(this._Default_PreRender);
this.PreInit += new System.EventHandler(this._Default_PreInit);
this.SaveStateComplete += new System.EventHandler(this._Default_SaveStateComplete);
protected void _Default_InitComplete(object sender, EventArgs e)
protected void _Default_Init(object sender, EventArgs e)
protected void _Default_PreLoad(object sender, EventArgs e)


Change The Page On Page Init Or Load Events Depends On Mobile Device (iPhone)?

May 7, 2010

I have an C# website. Because of iPhone doesn't support flash i want to change a theme of my site on page load or init if user using it. Could any one show me (code in c#) how to determine that user is browsing my website using iPhone or iPad, not a blackberry, or android etc.

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Web Forms :: Better To Use - Load() Or PreLoad() Events ?

Aug 19, 2010

Since PostBack data and viewstate data are available and initialized to their respective controls at the time of page PreLoad() event ,i want to know then which place is better to use - either PreLoad() or Load() event for dynamically checking my controls status ?For the last one year i was blindly using Page's Load() event .Why i was using Load() event ? I think the same logical part can be done in PreLoad() , since data are available at that time .But what is the main difference when i use my logic Here(PreLoad event) or there (Load event) ?

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Does/Will Autofacs Integration Support PreInit Or Init Events

Mar 10, 2010

I see from around in the 1.4.4 source that Autofac's ASP.NET integration (via Autofac.Integration.Web) peforms injection of properties on the Page as part of the HttpContext.PreRequestHandlerExecute event handling, but that the page's child controls don't get their properties injected until Page.PreLoad.

What this means, though is that the injected properties of child controls are unavailable for use in the OnInit event handler.

For example, this works fine:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HelloWorld.aspx.cs" Inherits="HelloWorld" %>
<asp:Label runat="server" id="lblMsg" OnInit="HandleInit"/>.........

But changing the HelloWorld Page to a UserControl (.acsx) and putting the UserControl in another page doesn't work because _msgProvider isn't injected early enough.

Is there a way to make Autofac inject properties of child controls earlier?

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VS 2005 Breakpoint Not Working?

Mar 24, 2011

I have code behind which is being executed because it is causing an error. The problem is my breakpoint is not working. I have under debugger ASP.Net ticked and have this in my web.config


<compilation debug="true">
<add assembly="System.Windows.Forms, Version=, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Design, Version=, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies>

But I still cannot get it to work. I have checked everything.

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AJAX :: Init Function Is Not Working After Partial Post Back?

Mar 6, 2010

im using a init function after partial postback again the init function is not calling.

<asp:ScriptManager runat="server" ID="MainSM" EnablePartialRendering="true">
<asp:ScriptReference Path="~/JS/menu.js" />
<script type="text/javascript">

this script works fine but after partial postback again this init function is not working. So i searched in google i found some articles regarding this [URL]

<script type="text/javascript">
function pageLoad() {
// Initialization code here, meant to run once.

this works fine when it was postback,but without postback this init function is not working

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Visual Studio :: C# Breakpoint Is Not Working?

Feb 2, 2010

I'm having problem in using breakpoint. I'm creating a website in VS2005 in ASP.Net/C# language. but the problem is i can't seem to use the breakpoint.After putting the toggle breakpoint, and i clicked start debugging. it won't hit the breakpoint. but it will start running.however at the breakpoint (it should be a big red dot), it changed to something like this.then the program will continue to run but not hitting the breakpoint. i tried my program using my friend vs2005, the breakpoint can be hit...does anyone able to help me to solve the problem? i tried to search the solution in google and here. but seems like the solution doesn't work.

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C# - Visual Studio 2008 Breakpoint Is Not Working?

Apr 23, 2010

I am working on an ASP.NET project and I cannot make the breakpoints work! The project does not stop where I place a breakpoint. It does not seem to matter where I place the breakpoint.

I am in debug mode; I am using IE 8, Windows 7 OS;

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VS 2008 Breakpoint In Button Click Event Not Working?

Feb 22, 2010

I want to F11 through a button click event but the breakpoint I have set inside it doesn't halt code execution. I can see the shortest of pauses on the breakpoint itself but the code only stops executing at the next breakpoint outside the event (which is the page load ie. a postback). Why can't I step through the code in the button click event?

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Web Forms :: Onunload Events Unexpectedly Run (vs2008 C#)?

Mar 1, 2010

I am developing a website and find problems on onunload event.

As the code below, it aims to modify the database when the 'X' of browser is clicked or it navigator to other page. However, when the AAA.aspx is loaded, it is found that end() would be run and already modify the database and change the status as 1, which is not my aim.

<body onunload="<%end();%>">
AAA.aspx.cs: [code].....

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Preload .swf File And Cache It For Future Page Requests?

Mar 24, 2010

I am using swfupload to upload files on a website, the problem that every time the user open the page which contains the upload button, the page loads completely then the flash file start loading from scratch every time the user visit the page with no cache. Is there a way to preload and cache .swf files in my page?

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Web Forms :: Include Preload Script From ImageReady In Master Page?

Mar 1, 2011

I used Photoshop/ImageReady to create navigation buttons with rollover effects etc and it outputed two sets of code - one is a preload script and the other is the main code that displays the buttons. I want the buttons to go in a Master page, either in the page itself or in a header control .ascx file (could use advice on whether one is better approach than the other). In any case I'm not clear on how to include the javascript preload code, shown below. Should the navigation menu buttons go in the master page, or in a header control, and if so, does it go in the <script runat="server" > </script> area? I'm using VB - is the code below alright for VB?


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Forms Data Controls :: Gridview Events Relative To Page Events

Apr 9, 2010

I've googled a bit for the exact order of all gridview events relative to and where inbetween page events. The only Microsoft article: [URL] is not very clear. I'm especially interested in the gridview row_command event relative to page events.

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Visual Studio :: VS2008 Design Mode: "Events" Pane Not Always Accessible When Selecting A Control

Jun 26, 2009

I'm not sure if I'm an insulated case, but when I'm working out my aspx pages (or ascx) in VS2008 "source"
mode and selecting a asp control, VS2008 brings me up correctly the properties of this control, but the toolbar button to display the event (the lightningbolt button) is always missing!...unless I switch to "design" or "split" mode, and then switch back to "source" mode!

I have the same issue with Vista and XP. Is there something wrong with VS2008 or with my installation?

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Forms Data Controls :: Page Does Postback But The Breakpoint Wont Execute

Mar 12, 2010

have a gridview which has a delete linkbutton in 1 column, problem is that the click event for the button is not firing at all, the page does postback but the breakpoint wont execute and jump in the click event at all.


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CSS In The VS2008 IDE Stop Working?

Jun 3, 2009

Ive just started experiencing a weird problem with CSS in the VS2008 IDE. In my master page I have this

<div id="AdminContent">
<div class="Adminholder">
<div class="steps">[code]...

in the div with a class of steps, there is a border at the top and bottom of 1px, framing the text.Ive created a page inherited from the master page, and in the IDE the borders appear, but when i run the web page (firefox 3) the lines are not there ! Ive tried increasing the size of the lines to 10px, and again in the IDE this change is reflected and the thicker lines appear, but at runtime, nothing !!

the weird thing is that in the VS2008 IDE !

#AdminContent {float:left;margin-left:0px;width:100%;}
#AdminContent .Adminholder {margin-left:0px;overflow:hidden;padding:0 10px;}
#AdminContent .steps,#AdminContentRight .steps {border-top:1px #ff5c01 solid;border-bottom:1px #ff5c01 solid;overflow:hidden;width:100%;margin-bottom:1.2em;padding:0.5em 0;}

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Apr 16, 2009

I'm doing one of Joe Stagner's great install tutorials for Ajax/VS2008 (actually, tried to re-play the one specific the VS2008 but couldn't find it - but confirmed my steps against vid #1 for VS2005) and have these problems:


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Visual Studio :: JavaScript Debug Only Hits Breakpoint If It Is On The Page That Is Initially Opened?

Apr 13, 2009

I'm trying to debug some javascript but it only goes into debug mode at the breakpoint if I open the page the javascript is on directly with F5. If I open another page with F5 and then link to the page with the breakpoint on it I never get to debug mode.

Is there some setting I'm supposed to be toggling or is that the way it works?

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AJAX :: No Extenders Are Working For VS2008?

Jan 26, 2011

I started up a new 3.5 Asp.Net Website using VS2008.

No Asp.Net Ajax enabled Website or Ajax toolkit enabled templates present.

Ajax Extensions tool set is there.

Added the ajaxtoolkit3.5 controls to the toolbar in its new tab. I'm running 3.5.


Add scriptmanager to the page.

Add a standard control. I tried each one of the following one at a time: Button, Textbox, Panel.

I drag and extender to the window and (/) can't do!

I cannot drag and drop any extenders to my page.

I add reference to the ajaxtoolkit dll that is the bin directory. Does nothing.

I add a Register declaration on the page. Does nothing.

I didn't touch the code behind. Everything there is default including the using statements.


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Stop Processing The Page In Visual Studio 2010 At A Breakpoint (but Not Terminate Debugging Altogether)

Sep 21, 2010

I am debugging an ASP.Net C# application in Visual Studio 2010, the application is running and execution is currently stopped at a breakpoint. How can I stop the page execution without "Terminate All" or killing the debugging process altogether, similar to what would happen if an unhandled exception was thrown? The "Break All Cntl+Alt+Break" option is grayed out in the Debug menu.

I want to stop the app from running but not have to go through a compile/start again. EDIT: I want execution to stop, not break, so that the page finishes loading and I don't continue running the application from the breakpoint forward. I've looked through the Breakpoints panel, the Debug menu and have right clicked all over but still haven't found the right option.

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Visual Studio :: Debug Not Working In Vs2008 Ide?

Nov 6, 2008

for some reason setting breakpoints in the codebehind no longer stops for debugging. It just suddenly started happening for no reason. Has anyone else experienced this ?

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Security :: Login Controls Not Working In VS2008

Mar 13, 2009

I am creating a 3.5 app using VS2008 on a Vista Ultimate machine. I wanted to add the login features using the login controls. I was able to create users and roles without any problem using the web admin tool that comes with VS. But when I try to login using the same credentials I am always getting "Your login attempt was not successful. Please try again." error message. I am using MS Sqlserver 2008 as the backend. I am not using any .mdf or sqlexpress databases. I even deletd the App_Data folder. In sqlprofiler, I see the web admin tool is connecting, but when I try to login using the login control, it doesn't even show up on the sql profiler. I tried to launch VS 2008 as an admin, still no success. I tried to browse with IE or FireFox. The dev site is not hosted on IIS yet, and it is running on the dev server that comes with VS 2008. I have squandered nearly one week on this issue. Ironically I was able to to create a website last year with these same controls on VS2005 and Windows XP professional, and the site is running like a charm!

The following is the entry in my web.config file:

<remove name="AspNetSqlMembershipProvider"/>
<add name="SqlMembershipProvider1"
type="System.Web.Security.SqlMembershipProvider, System.Web, Version=, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"

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Visual Studio :: Msi Not Working In Vs2008 After Conversion?

Jun 11, 2009

I have converted my application from 2005 to 2008. It all seems to work fine, however when i build my web setup proj and run the msi, it fails. It doesnt provide any info as to why. How do i get my msi to work? Is there something i need to do for this to happen?

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VS2008 CR Report Viewer Print And Export To PDF Is Not Working?

Mar 28, 2010

I've a web project in VS2008. The problem is that from a web report viewer; report is not getting printed or exported to pdf. Report is being shown alright but when print button or export button is pressed, nothing happens. No errors or crash. Just nothing got happened. Default printer is set alright and I am able to print from that machine.. Am I missing some thing here? Earlier when I installed the application in a new virtual directory report was not getting shown then I've copied aspnet_Client folder in my newly created web application root and the report was then made visible. However the print and export functionality is not working.

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Way To Preload Images Using C#?

Jan 7, 2011

Is there a way to preload images using c#? I'm populating 45 photos randomly from database, and display those photos in datalist control item template. I would like to be able to preload those photos that way the users are not seeing the "painting" ..

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Mar 6, 2009

I am creating one slide show using ajax with timer and animation extender. Now i want to preload all images so that my slideshow work fine,

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How Do Preload Images Using C#

Mar 6, 2009

There are quite few code-examples online to preload images with java script.For a reason I want to use C# instead, to preload images during application-start.I need to preload them, to see the images faster in the layout, when the pictures appear for the first time.How do I preload images using C#?

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Architecture :: Dsofile.dll Not Working In VS2008 Website On Windows 7 64-bit Machine / Error: 80040154

Oct 22, 2010

I need to extract meta-data of different files, as uploaded by the user.

For this I found out dsofile.dll from MS. Now the problem is that the version I've downloaded from

[URL] is working fine with Windows XP but giving run-time error in Windows 7 64-bit system. Finding more on the error I was getting I came to know that the dll would not work for 64 bit OS. I also downloaded 64-bit from [URL] but still am getting below run-time error:

Retrieving the COM class factory for component with CLSID {58968145-CF05-4341-995F-2EE093F6ABA3} failed due to the following error: 80040154.

I've two questions:

How can I solve this run-time error and from where will I get dll working in VS2008 Website on Windows 7 64-bit?

Is there any other way I can extract meta-data (all the attributes/properties other than exposed by System.IO.FileAttributes) of any file (could be doc, docx, xls, xlsx, jpg, pdf, txt, etc.) uploaded by the user?

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Dec 28, 2009

I have created a 2 user controls. In each user control one list box will be there. Take it as ListBoxA in webusercontrolsa and ListBoxB in webusercontrolb. when the user clicks item in listboxb it should move to listboxa. how can i write the functionality for this. I have written a code behind in aspx.cs and listboxb.ascx.cs for this but it is not working (i am getting the data in ListBoxB but when i click the items are moving to ListBoxA). anyone Check with my code and let me know what else i need to change.


public partial class webusercontrolb : System.Web.UI.UserControl
public event EventHandler OnClientClick;
protected void Page_Load(object sender, EventArgs e)

protected void lstbx_IndexChanged(object sender, EventArgs e)


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Jul 29, 2010

Dear friends, i'm working on user controls and events inside user control doesn't work for me.. my development process stuck due to this.

User control has a gridview which has rowcommands.

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Jan 23, 2009

I have several web page unit tests that I have run sucessfully for months. After I installed VS2008 SP1 they are now failing with this error from VS:

Error Page_Load_NoQueryString_EmptyErrorLabel UnitTest The test adapter 'WebHostAdapter' threw an exception while running test 'Page_Load_NoQueryString_EmptyErrorLabel'. The web site could not be configured correctly; getting ASP.NET process information failed. Requesting 'http://localhost:14247/VSEnterpriseHelper.axd' returned an error: The remote server returned an error: (500) Internal Server Error.

Just to check I downloaded the same source version and ran the tests again on my non sp1 laptop and they worked fine.

The web site runs just fine, so I doubt there is some problem with the configuration file. If there is a problem with the config file it would have to be something that the testing host is sensitive to, but not the development server?

Here is a copy of the various logs that I have turned on to try to figure this out.


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Mar 3, 2010

I'm working in 2008 and cannot find out how to simply add the preload event to the code behind. In 2005 I just simply double clicked on the event in the list and it would set it up for me.

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Jul 10, 2010

I have got an issue after updation in UpdatePanel. The issue is the jquery events are not working/firing after the updation in UpdatePanel. At first time, the jquery events work, but not after the updation in UpdatePanel. If I remove the UpdatePanel, the problem is solved. But I have to use the UpdatePanel.

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Calling 2 Events Onclik And OnclientClick But Onclick Is Not Working?

Jun 1, 2009

In my Page I am calling 2 event Onclik and OnclientClick, but Onclick is not working...

OnClientClick="return toggleVisibility3('Button2','Button3');"

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Jan 25, 2011

m new to .NET. I'm trying to create a button dynamically with event by original button. The original button's click event response creates a button. The new button has a click event attached with a test message.What I have to do is onclick change background color of dynamically created button and grab id value to delete when button delete is clicked. Unfortunately, when I click the dynamically attached button,

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">


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Jan 25, 2011

I am using Telerik Rad controls in my project. I have a Rad Calender inside a Repeater.

<asp:Repeater ID="ResultRpt" runat="server">
<telerik:RadCalendar Style="width: 191px; height: 123px" ID="RadCalendar1" runat="server"


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Aug 13, 2008

I can not install vs2008 sp1 on vs2008 professional trial edition. The setup log says"

Installation Log

Message Types:


Message Details:

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Dec 15, 2010

I have a set of CalendarExtenders. When I include my javascript file, the onclick event which pops up the calendar no longer displays. My javascript file adds onchange events to those text boxes.

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Jun 3, 2010

I am working on object data source and datagridview. I have given object data source to the grid view as the data source of grid. The issue which i m facing is that whenever i click on next page(like 2 or 3 or 1) it takes lot of time to fire. although it is fired but I have to wait a minute or two and then it fired.

Whenever I click any event(e.g. next page , page 5 ,3 or edit etc) of gridview it does not give response. If I wait for a minute then click one of event then it performs, and then again I have to wait to fire other event.

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Nov 16, 2009

I am trying to call a scalar query from the C# page behind an .aspx page in VS2008; however I keep getting an error and I cannot figure out how to fix it. Basically the user will enter text into a textbox. The text is assigned to a variable and sent to the BLL. From there down to the DAL (Using table adapters). I want the query to execute which should return an integer (Query has been tested and works like it is suppose to in query builder). To me this error seems to indicate that it is not receiving or not understanding the parameter I am passing. How do I get the query in the table adapter to understand that the "teamName" parameter is meant for the "@Team_Name"?

Exception Details: System.Data.SqlClient.SqlException: The parameterized query '(@Team_Name nvarchar(4000),@Is_Active_YN bit,@Team_Semester nvar' expects the parameter '@Team_Name', which was not supplied.
Here is the query:
FROM dbo.Team
WHERE (Team_Name = @Team_Name)
Here is code from the C# page behind the aspx:
// Declares PEEPSBLL object
// Calls GetTeamID method and assigns the returned value to id.
int id =
Here is the code from the BLL:
int GetTeamID(string teamName)

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