Web Forms :: User Control Stopped Working After Pasting Similar Instance

Aug 5, 2010

I have designed a basic web user control to enter some values in a table. The control worked fine if it is used without similar control on same page. When another instance is pasted with different id, then both stopped working.

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Web Forms :: User Control Stopped Working After Upgrading?

Aug 25, 2010

I have a c# control class inside of a dll, then this control is embedded in a web page in an asp.net application by using the object tag. When the dll is compiled with .net 3.5 sp1 and the web application also runs in .net 3.5 sp1, the code works fine. But when the dll is compiled in .net 4.0 and the web application runs in 4.0, the control does not show up in the web page. All I see is a box with an object icon in the upper left corner.

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Web Forms :: Assign User Control From Another User Control ? Giving Error Object Reference Is Not Set An Instance?

Feb 17, 2011

I am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error

saying "Object reference is not set an instance".

how to refresh data from another user control ...

My senerio below :

1 Aspx page

2. User control

calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..

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Create ASP User Control With Inner Properties Used With Markup Similar To UpdatePanel?

Nov 5, 2010

I am creating a user control that I wish to have inner properties as well as normal attributes. Although the actual function of the control has nothing to do with, say, UpdatePanel, I am trying to create something with similar ASPX markup. The developer designing the page should be able to use my control like:

<ns:MyControl ID="someID" runat="server" SomeOtherAttribute="true">
<ContentTemplate>
<asp:Label ID="someLabel" runat="server" Text="Normal page markup and controls should go here" /><br />
<p>This should be OK too.</p>
</ContentTemplate>
<ControlEvent ControlName="idOfOtherControl" Event="Click" />
<ControlEvent ControlName="idOfSomeOtherControl" Event="MouseOver" />
</ns:MyControl>

Also acceptable would be wrapping the ControlEvent tags in some other tag, more like what happens when using UpdatePanel:

<ns:MyControl ID="someID" runat="server" SomeOtherAttribute="true">
<ContentTemplate>
<asp:Label ID="someLabel" runat="server" Text="Normal page markup and controls should go here" /><br />
<p>This should be OK too.</p>
</ContentTemplate>
<ControlEvents>
<ns:ControlEvent ControlName="idOfOtherControl" Event="Click" />........................

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Web Forms :: Logout User If Accessing Pages Directly By Pasting URL In Browser

Jun 25, 2013

I have two asp page first is login page. I enter username and password then after submit click goes second page their is a logout option. then thr URL of second page is copy and paste in another browser then it will second page it is not logout,I want to after paste URL it goes Login page.

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Web Forms :: FileUpload For Images Stopped Working

Apr 16, 2010

I have a web app that allows users to upload images. Last week, all was well. This week, it appears the code is breaking. Here is the code:

Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click
If FileUploadControl.HasFile Then
Dim month As String = ddlMonth5.SelectedValue
Dim year As String = ddlYear7.SelectedValue
' Dim whatis As String = FileUploadControl.PostedFile.ContentType
Try
If (FileUploadControl.PostedFile.ContentType = "image/jpeg") Or (FileUploadControl.PostedFile.ContentType = "image/pjpeg") Or (FileUploadControl.PostedFile.ContentType = "image/gif") Or (FileUploadControl.PostedFile.ContentType = "image/x-png")
Then
Dim fs = New FileStream(FileUploadControl.PostedFile.FileName, FileMode.Open, FileAccess.Read)
'save file with new size
Using image As System.Drawing.Image = System.Drawing.Image.FromStream(fs)
Using bitmap As New Bitmap(image)
bitmap.Save("C:WebsitesimagesCusRespData.jpg", image.RawFormat)
bitmap.Save("C:Websitesimages" & month & year & "CusRespData.jpg", image.RawFormat)
End Using
End Using
StatusLabel.Text = "Upload status: File uploaded!"
fs.Close()
fs = Nothing
Else
StatusLabel.Text = "Upload status: Only .jpg,.jpeg,.gif and .png files are accepted!"
End If
Catch ex As Exception
StatusLabel.Text = "Upload status: The file could not be uploaded. The following error occured: " & ex.Message
End Try
StatusLabel.Visible = True
End If
End Sub

On the development side, I see this error: The file could not be uploaded. The following error occurred: Could not find a part of the path. On the production side, this occurs: The following error occured: A generic error occurred in GDI+.

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Security :: Forms Authentication Stopped Working IE8?

Feb 9, 2010

I'm using IE 8 v.8.0.6001.18882

After upgrading ie my login form that uses forms authentication stopped working.

After studies find that IE8 has problems with the authentication cookies.

With all other browsers work perfectly.

My settings in web.config.

[Code]....

I tested all the values of being the only one that works is the UseUri but I do not control cookies in this way.

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File Upload Stopped Working - Only Working For About 100KB

Jan 10, 2010

Until the Dec 29th my website was working fine. Then My fileupload problems started happening. My fileupload page would simply quit and say the page can not be found. I maximized all my timeout settings and that did not work. I called my hosting company and apparently they have no problem using my page to upload files from their geographical area. So then I concluded it might be a network problem. I ran a trace route and could not really figure out where the problem was. So, I have no idea what is going on. Is it possible that my site is being blocked by some black list out there somewhere?

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Security :: Forms Authentication Across Applications Stopped Working?

Jan 12, 2011

I have a .net 1.1 ASP application (domain.com) which has a .net 2 virtual directory (domain.com/v2) beneath it, both applications run within their own app pool on the same Windows Server 2003 machine running IIS 6. The web.config files for both apps are setup for Forms Authentication as described here - [URL]

Users would be directed to the domain.com/v2/login.aspx page which would authenticate for both applications, this configuration has been working fine for the last few years until installing one of the recent Windows 2003 security updates today. Now after authenticating under /v2 users keep getting redirected back to domain.com/v2/Login.aspx as domain.com doesnt see them as authenticated anymore.

which security update would have caused this and if its possible to fix or rollback?

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Web Forms :: Object Reference Not Set To An Instance In User Control

Jul 15, 2010

i am trying to enter a value into a texbox that is placed inside a user control called CollectionRequest. i have referenced this user control in my code behind and created an instance of it but i seem to get the above error when i try to enter some manual text. code as follows:

protected CollectionRequest collReq;
protected void Page_Load( object sender, EventArgs e )
{
collReq = (CollectionRequest)LoadControl("~/CollectionRequest.ascx");
TextBox _txt_address = (TextBox)collReq.FindControl("txt_Address");
_txt_address.Text = "thisi is an address";
control has been referenced in source file
<%@ Reference Control="~/CollectionRequest.ascx"%>

i am caling this code in my Approval.ascx.cs code. both the user controls are displayed together in the default.aspx page one above the other.

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Web Forms :: Button Click Stopped Working After It Worked For Some Time?

Mar 17, 2011

Iam working on VWD express 2010, and things were going well, when the VWD crashed.I recovered my work and and realized that my controls stoped firing events.I removed and added button again, but in vain. I set "AutoEventWireup" and reset it also, but no use.I changed the code onto multiple systems. But the events wont fire. (I kept breakpoints also) My Web.config looks like this

[Code]....

And my page directive looks like this

[Code]....

And the non working code bit is this

[Code]....

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Forms Data Controls :: Datagrid Edit Stopped Working - How To Fix It

May 4, 2010

I have been using a datagrid on various pages. For some reason it stopped working. When pressing the Edit to make a change to the record, the page posts back two times and the record does not go into the edit mode. I am using IE 7 for my browser. Below is my code.

[code]....

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Forms Data Controls :: Buttons Stopped Working - Except Cancel

Aug 19, 2010

I'm still building). After loggin in, users are presented with 3 radio buttons (they work), and 3 cascading drop downs (they work). Below that is an AJAX Accordion with 5 panes, each pane has a tabpanel with 4 tabs, 2 of the tabs have gridviews that change based on who is logged in and the radio buttons and dropdowns above

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Web Forms :: Multiple Instance Of User Control On Page - How To Get The Value Of Second TxtSearch

Jul 28, 2010

I have this Web User Control, with 3 controls:

[Code]....

In code behind:

[Code]....

When I try to add two UserControl and I Click in btnSearch of second UserControl, txtSearch.txt returns value of first User control.

How I can get the value of second txtSearch?

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Web Forms :: Want To Support Defining Property When Declaring The Instance Of This User Control

Jun 10, 2010

I created user control. It exposes string[] public property (it may be List<string> or whatever). I want to support defining this property in aspx code, when declaring the instance of this usercontrol. Something like this:

[Code]....

[Code]....

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AJAX :: Pasting Into HTMLEditor Control?

Jan 19, 2010

I have a few issues with the HTMLEditor control.

First, if I type an e-mail address into the HTMLEditor control, it automatically reformats the e-mail address into a link (underlined w/ blue font). How can I disable this feature?

Second, is there a way to prevent pasting into the HTMLEditor? I successfully got Internet Explorer to throw errors when I copied & pasted the entire page, HTMLEditor and all, into the HTMLEditor control. Since the page already contained a PageRequestManager, the data I pasted into HTMLEditor contained its own code for a PageRequestManager. As a result, unsurprisingly, I got the following IE error:

Error: Sys.InvalidOperationException: The PageRequestManager cannot be initialized more than once.

Is there a way for me to prevent these strange situations from occurring?

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AJAX :: Toolkit Has Stopped Working

Jan 27, 2010

Am in the middle of developing 2 projects and my AJAX Toolkit has stopped working, which is also stopping my designer filers being generated. Have the same problem in both projects. A sample error is below: Warning 3 Generation of designer file failed: Unable to create type 'cc1:CollapsiblePanelExtender'. Could not load file or assembly 'System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

C:UsersHuwDocumentsMy
Web SitesRegent2Regent2Master.Master 169 0 Regent2

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Crystal Reports :: Webserver40.exe Has Stopped Working?

Sep 6, 2010

I've just upgraded a visual studio.net 2003 project (asp.net 1.1) to visual studio.net 2010 (asp.net 4.0). I'm encountering a problem with viewing Crystal reports. I'm using Visual Studio Development Server as a Web Server.

When I try to create a new report (via code that worked fine previously) the line below causes the webserver40.exe to crash.

Protected WithEvents MyRep As New CrystalDecisions.CrystalReports.Engine.ReportDocument

I've got Crystal Reports 11 installed.

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MVC :: Target 3.5 With ViewData - Code Stopped Working

Mar 26, 2011

I'm just getting started with MVC and I created a new MVC 2 C# project. Visual studio defaults it to .net 4 but since my hosting provider is still on 3.5 I went into properties and set my project to target .net 3.5. However when I did this a piece of my code stopped working.

<%: ViewData["result"] %>

I get a compilation error saying

CS1525: Invalid expression term ':'

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AJAX :: PageLoad Suddenly Stopped Working?

Jan 12, 2010

[code]....

AJAX :: pageLoad suddenly stopped working?

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HttpHandler For 404 Error Stopped Working After 4.0 Upgrade?

Feb 15, 2011

I have an HttpHandler which takes care of 404 errors, which I implemented years ago as a way of doing url routing. If the request maps to a valid page, it redirects to that page. Otherwise, it returns a 404. (I know I should start using the new routing feature of asp.net 4.0, but that will take some time. I need to get this working asap.)

In IIS6, I have mapped the 404 error to "/404.ashx". In the web.config, custom errors are set up like so:

<customErrors mode="On" defaultRedirect="error.aspx">
<error statusCode="404" redirect="/404.ashx"/>
</customErrors>

and the http handler:

<httpHandlers>
<add verb="GET" path="404.ashx" type="myNamespace.PageNotFoundHandler,myAssemblyName"/>
</httpHandlers>

This has been working for years - it stopped working as soon as I changed the site to use asp.net 4.0. Everything was recompiled for 4.0, and there were no code changes.

Now, when I hit one of these urls that used to work, I get a blank page with a 404 error code. If I remove the IIS 404 error mapping, I get a regular old 404 page. It seems that the httphandler is not being called.

I have other http handler which are working fine. I figure there must be some configuration setting I missed or something like that. Naturally, this is a problem only on my production server, so I can't run it in the debugger to see what is happening.

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Configuration :: Services Stopped Working On Subdomain?

May 14, 2010

I have some services deployed on [URL]I want to move them to [URL]. I have [URL] physically hosted & has its own web.config file. No inheritance issues...

I configured the subdomain (through my host--I don't actually own the web server) so that the subdomain is physically hosted & made sure it's running as an IIS application.

When the services lived on [URL], I used the following address prefixing in web.config:

[Code]....

Now that they're on [URL], I modified the web.config to read:

[Code]....

<serviceHostingEnvironment aspNetCompatibilityEnabled="true">

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AJAX :: 3rd Cascading Dropdown Stopped Working?

Aug 13, 2010

I'm having a problem with my 3rd cascading dropdown no longer displaying the list. I've obviously made a change somewhere but I cannot see it so I'm hoping some extra eyes will spot the problem. If it matters, I am using VWD 2010 Express, SQL Express, .NET 4.0I have checked the datasets and they are returning the proper list based on the input criteriahere is the pertinent code:

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
District: <asp:DropDownList ID="DistrictDropDown" runat="server" Height="20px" AutoPostBack="true"

[code]...

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How To Automatically Set A Different ValidationGroup For Each Instance Of A User Control

Nov 29, 2010

I have a user control that has multiple instances on a single page.

Is it possible to have each instance use a unique ValidationGroup? I could expose a property, but I'm wondering if there's any way to do it automatically.

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Visual Studio :: WebDev.WebServer20.exe Has Stopped Working

Jul 28, 2010

Using VS2010 Pro, I started up an web site and got the message "WebDev.WebServer20.exe has stopped working" - a very similar problem was reported at

[URL]

I checked C:WINDOWSassembly and found that System 2.0.0.0 was missing (again!), reinstalled it but still got

""
System.ArgumentOutOfRangeException was unhandled

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