Web Forms :: How To Solve This Error
Nov 12, 2010
System.NullReferenceException: Object reference not set to an instance of an object at System.Web.UI.ScriptManager.RegisterScript (System.Collections.Generic.List`1& scriptList, System.Web.UI.Control control, System.Type type, System.String key, System.String script, System.String url, Boolean addScriptTag, RegisteredScriptType scriptType) [0x00000] in <filename unknown>:0 at System.Web.UI.ScriptManager.RegisterClientScriptInclude (System.Web.UI.Control control, System.Type type, System.String key, System.String url) [0x00000] in <filename unknown>:0 at System.Web.UI.ScriptManager.RegisterClientScriptResource (System.Web.UI.Control control, System.Type type, System.String resourceName) [0x00000] in <filename unknown>:0 at WebLib.Utils.AddStyles (System.Web.UI.Control p) [0x00000] in <filename unknown>:0 at WebLib.Input.OnPreRender (System.EventArgs e) [0x00000] in <filename unknown>:0 at System.Web.UI.Control.PreRenderRecursiveInternal () [0x00000] in <filename unknown>:0 at System.Web.UI.Control.PreRenderRecursiveInternal () [0x00000] in <filename unknown>:0 at System.Web.UI.Control.PreRenderRecursiveInternal () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessLoadComplete () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename unknown>:0 at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] in <filename unknown>:0
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Feb 24, 2011
I have an existing project with a silverlight3 app. First I created SALESservice.svc.This is working fine. Now I added another TARGETservice.svc to my project and rebuilded my entire project but when I am trying to add the service reference in to the silverlight app I get the following error:
There was an error downloading metadata from the address.verify that you have entered a valid address. I didn't write any code in ISALESservice.svc AND ITARGETservice.svc . I have written in SALESservice.svc.cs AND TARGETservice.svc.cs files.Is this causing error? But for SALESservice.svc it is working. I didn't add any code in web.config file.
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Jan 13, 2011
I getting error in loading .css file in my asp.net Web Application, I got error message like
Error: The stylesheet http://'<Website URL>'/css/default.css was not loaded because its MIME type, "text/html", is not "text/css". How can I solved it.?
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Jul 28, 2010
I am having some issues accessing a literal in a usercontrol.
I get the following error: System.NullReferenceException: Object reference not set to an instance of an object. at page.sbPageLoad(String sTypeCD, Int32 iCategoryID, String SortExpression)
Does the following code below look right?
Here is my usercontrol named: topbanner.ascx:
Code:
[code]....
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Jun 1, 2010
I just published my website to a server. Using this server I get the following error when I click on an image to view it:
System.OutOfMemoryException: Out of memory.
I didn't had the error when I worked on my local server.
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Sep 15, 2010
I am trying to register below mentioned javascript for using with GridView to add freeze functioality on GridView.
When compiling an error is thrown Microsoft JScript runtime error: 'Sys' is undefined
How it can be fixed.
<script language="javascript" type="text/javascript">
// This Script is used to maintain Grid Scroll on Partial Postback
var scrollTop;
//Register Begin Request and End Request
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
//Get The Div Scroll Position
function BeginRequestHandler(sender, args)
{
var m = document.getElementById('divGrid');
scrollTop=m.scrollTop;
}
//Set The Div Scroll Position
function EndRequestHandler(sender, args)
{
var m = document.getElementById('divGrid');
m.scrollTop = scrollTop;
}
</script>
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Apr 5, 2010
these below codes give whole data of my Rehber datas. But if i want to show web page via Gridview send me out of memory exception error.
[code]....
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Nov 4, 2010
I see a message on:
winform control hosted in IE, FileIO security exception.
I have got the same problem, which I cannot figure out what is the solution for weeks.
I have Windows 7 (Home premium edition), framework 3.5 (how can I check that, if gacutil is correct version, if it metters, anyway ...)
I am writting on C#.
Also on assemblyInfo.cs :
[code]....
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Aug 24, 2010
"Object reference not set to an instance of an object." How to solve this kind of errors. In my application,am using C#.Net as codebehind,ASP.Net as front,VS2008(frmwrk3.5). Usually what i'd do to solve this error is thatr i will clr my cache & Tempdatas in my browser.After that my prg will run good.But its not a professinal way right?. error comes after this line
"DataSet DS = (DataSet1)Session["Content"];
DataTable DT = DS.Tables[0];"
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Sep 10, 2010
I've a datalist within the logged in template.On the page_load first I'm ensuring the visitor is logged in
[Code]...
[Code]...
However this doesn't work,I get the following error:Object reference not set to an instance of an object.
Highlighting:DataList1.DataSource = ds
If I take the loginview away then it works,but I thought the loginview1.findcontrol part would solve any problems.
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Nov 8, 2010
I used below code in ASp.NET web forms code behined. Its passing parameter in the URL to which which page I am on so that I make HTML and add ON CLASS to show the page I am on.
How I solve this in MVC?. Any clean approach.
[Code]....
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Aug 31, 2010
I am using multiple logins at a time to my application ,but it seems it stops working after some time.I am using MS Access as a backend and use oledb connection for database connection.also closing it every time wht will be the solution for that
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Dec 15, 2010
After many years reading this forum... I didn't found the solution to my actual problem... When I tought... this could be a big problem... I have a web app wich doesn't have try catch blocks in every method... so I need to implement a generic solution to handle exceptions and the most important... show some BO exceptions to user inside a MessageUserControl (ASCX) wich uses AJAX. this is the big problem, I tried many solutions, application_error, a specific log module, page_error... and with all I got to the same problem...
The UpdatePanel, when it got an unhandled exception, it fires the events (application_error, page_error) or even the httpmodule, but I think it call an Response.End, wich stops any action in the page... and this is just I don't want to do... I need to display the message to the client. this is the call to show the message...
[Code]....
My page wich gots an unhandled exception are inside an UpdatePanel, if I remove it, the message shows UP! I'm working on this for 5 long days.
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Feb 7, 2011
How to solve the Cross domain issue using webservices?
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Dec 9, 2010
I have a web form with about 20 fields all validated, rather than use the validation summary control.
I would like a one line alert at the foot of the form that says something along the lines of "errors were found check the fields highlighted with a *" rather than an explanation for each field that has failed validation.
Seem simple enough in theory but i cant work it out.
Is there a line of VB.net code i could use to determine if validation has failed on one or more of my validators and maybe show a label with the "errors were found please check the fields highlighted with a *" message?
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Feb 23, 2010
Following is the error log captured:-
The error description is as follows :
Source: mscorlib
Message: Padding is invalid and cannot be removed.
Stack Trace:at System.Security.Cryptography.RijndaelManagedTransform.DecryptData(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode paddingMode, Boolean fLast)
[code]....
This issue is occuring on and off and I am unable to reproduce it at my end.
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Feb 28, 2011
how to solve the AJAX POST problem on ASP NET MVC running on IIS7, basically when you use an Android 2.1 phone and load an ASP NET MVC website on IIS7, and you click on a input button that subsquently makes an AJAX call, you get on a high level, the error window shopwing Error: NETWORK_ERR: XMLHttpRequest Exception 101. I have generated a TempData variable containing some data, and when a RedirectToAction call is made to the controller, the TempData is null. am wondering if anyone has managed to solve this problem at all, and I have searched everywhere but no one seems to know the solution for it.
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Jan 30, 2011
When I am executing my stored procedure it is throwing Divide By zero Exception. Because In my database there is no data for some months. How can I solve this?
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May 20, 2010
I try to use some cookies in my website.
But it isn't working right now.... , maybe becuase he doensn't run at a domain and locally like:
[URL}
But i like to be sure about this, and is my code ok?
The first one i run it , he runs the code between the if statemant.
The second one he has a cookie so he doesn't run the code between the if, but, the value of the coockie is null ?
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Sep 10, 2010
I have created Accordion control from database. so basically in the header section I have bind categories and in the panel Bind subcategories. basically now it's working fine. but the important thing what i have to do is if i selected a category on that time it's showing me subcategory in the accordion. but at the same time i have to show subcategory on another page. As well as i have to keep selected header true. Now not getting how to show subcategory on another page and as well as how to keep selected header true.
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Mar 4, 2010
How to get a primary token to solve a double - hop and be able to access Active Directory [URL]
I don't understand a method A where is ASPX page to set the security mechanism to Anonymous only.
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Jun 6, 2010
Error:
Executed as user: MACSTEELUSA.COMsa. ...9.00.3042.00 for 32-bit Copyright (C) Microsoft Corp 1984-2005. All rights reserved. Started: 8:00:17 PM Error: 2010-06-02 20:00:18.56 Code: 0xC0202009 Source: CRM_ORACLE_ARSUMMARY Connection manager "SourceConnectionOLEDB" Description: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for Oracle" Hresult: 0x80004005 Description: "Oracle client
and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation. Provider is unable to function until these components are installed.". End Error Error: 2010-06-02 20:00:18.58 Code: 0xC020801C Source: Data Flow Task Source - Query [1] Description: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireCon... The package execution fa... The step failed.
Tasks Taken:Went to this folder checked for tnsnames.ora file but it is in good shape.
C:ORACLEproduct11.2.0client_1
etworkadmin
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Mar 7, 2011
I'm having a wicked time trying to redirect the different error scenarios to a custom error page. Basically, I have put some code in Application_Error in global.asax, and done the necessary web.config settings to use Custom Errors.
In global.asax on Application_Error, I stored the Server.GetLastError in Session. The reason I have to store it in Session is because (as far as I know) you lose the exception when using "ResponseRedirect". And the reason I have to use ResponseRedirect is because I am using an UpdatePanel with AJAX calls, and any exception during the AJAX call shows up as a JavaScript error, and doesn't get handled using the custom error page (see this post).
void Application_Error(object sender, EventArgs e){ ////must perform this check to avoid the "Session state is not available in this context" errors if (HttpContext.Current.Session != null) { Session["LastException"] = Server.GetLastError(); } else { // (I think this happens when there are compile-time errors) Server.Transfer("~/Oops.aspx"); }}void Session_Start(object sender, EventArgs e){ //must perform this check to avoid the "Session state is not available in this context" errors if (HttpContext.Current.Session != null) { //initialize the session (http://forums.asp.net/t/1405077.aspx) Session["LastException"] = ""; }}
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Feb 4, 2010
I want to redirect to Error.aspx page if runtime error occurs.How to acomplish this task.
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Feb 10, 2010
I have been using the RemotePost Class( as per http://www.jigar.net/articles/viewhtmlcontent78.aspx) to post a form to a pay provider, for about 3 months successfully, I made some changes external from the call to this class that sent an email when user presses the button to notify us that the user has selected to go through to the pay provider (similar to PayPal). and suddenly got an exception error MSCROLIB, Thread was being aborted. I have since removed the code and I still get the error it happens when I call
[Code]....
I tried the suggestion on KB article [URL]/ but the control is not past to the Pay Provider I also took the actual response that is written and posted it to a new html file added a submit button and it works. So I am no stuck. The Pay provider claims they have changed nothing, and has tried to help but says they are receiving no input from either our dev site or the live site.I also tried to step into the call but it just throughs the exception
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