Javascript - ASP.NET Confirm Before Executing Codebehind?

Mar 23, 2012

I have a form where a user can delete a record, and I want a pop up message where the user has to click okay to confirm the delete.

Delete button:

<asp:Button ID="btnDelete" runat="server" Text="Delete" UseSubmitBehavior="false" OnClick="btnDelete_Click" OnClientClick="confirmation();" />

Confirmation function:

function confirmation() {
var answer = confirm("Are you sure you want to delete? This action cannot be undone.")
}

So right now, clicking the delete button executes the btnDelete_Click Sub in the code behind regardless of whether you click okay or cancel in the pop up box. I know I can add if (answer) { -- some code here -- } in my javascript function, but is it possible to use javascript to execute code from the codebehind? Or is there another way to do this?

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I try this:

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[code]...

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I'm using vb.net 2005. Here is my code:

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function myfunction()

[Code]...

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[Code]...

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[Code]...

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[code]......

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Here's the code from UW.aspx:

<WebMethod()> _
Public Shared Sub PrintBatchFromJSWM()
Dim UWI As New UW

[code]....

when I run the above code in PrintBatch_Click it all executes just fine. I really don't understand why it bombs out as a subroutine.

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[Code]...

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Simplified:

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