Confirmation box in gridview delete

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I'm doing my project in asp.net 3.5 version using C#.
I'm having a gridview with delete buttons. When the delete button is clicked I want to pop up a confirmation box and if the 'Yes' button is clicked, status of the corresponding value should be change as '0' in database. I have used one javascript function and template field in gridview. I'm getting the confirmation box, but when 'Yes' button is clicked an error is occuring as "

XML

Invalid postback or callback argument.  Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page.  For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them.  If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

".

How can I solve it?
Anybody please help me...

thanks

Posted 29-Feb-12 0:53am

Zukiari

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Career Web Helper · Answer 1 · 2012-02-29T02:34:00

try this

C#

if (!IsPostBack)

  {
      //Your code for Bind data
   }

For security purposes,EnableEventValidation feature verifies that arguments to postback or callback events originate from the server control that originally rendered them.
This is bcoz it might found some tag like <> after postback

pratikv20 · Answer 2 · 2012-02-29T01:39:00

Solution 1

you can use following code for giving confirmation on delete button

C#

<Columns>
      <asp:TemplateField ShowHeader="False">
             <ItemTemplate>
 <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" OnClientClick="javascript : return confirm('Do you really want to \n Delete?');">                                                
 </asp:LinkButton>
   </ItemTemplate>
      </asp:TemplateField>
 </Columns>

Posted 29-Feb-12 1:39am

pratikv20

Updated 29-Feb-12 3:06am

v3

Comments

Zukiari 29-Feb-12 7:57am

I have done the same, but getting error:

Server Error in '/DIS' Application.
--------------------------------------------------------------------------------

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.]
System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +8637801
System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +69
System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +35
System.Web.UI.WebControls.ImageButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.4963; ASP.NET Version:2.0.50727.4971