SelectedIndexChanged Fires For A DropDownList When A Button Is Clicked?

Mar 16, 2010

I have an ASP.NET DropDownList with AutoPostBack=true and EnableViewState=false. I have a button on the page that does nothing. If I change the selection in the ddl, it posts back , which is expected. If I click the button, the page posts back and the ddl's SelectedIndexChanged fires. Why does it get fired?

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[Code]....

[Code]....

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[Code]....

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There are a couple of things going on in this post:

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[Code] ....

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[code]....

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[Code]....

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Server Error in '/WebSite4' Application. Compilation Error
Description:

An error occurred during the compilation of a resource required to service this request.

review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30506: Handles clause requires a WithEvents variable defined in the containing type or one of its base types.

Source Error:

[Code]....

Line 13:End If
Line 14:End Sub
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Mar 2, 2011

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[Code]....

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I couldnt find the main reason why a dropdownlist selectedIndexchanged event firing without I changed anything on that dropdownlist.

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