C# control event handling with javascript

How can I get javascript to execute for "onchange" / "OnSelectedIndexChanged" event instead of a CodeBehind method? I think "OnSelectedIndexChanged" event has to be handled by CodeBehind; but how can I replace that (or onchange) with
a javascript event handler?
I have the following in my xyz.ascx file:
<asp:DropDownList ID="ddlTypeCar" CssClass="BatsRefAddressTypes" runat="server"
                  onchange="javascript: testAlert();"
                  OnSelectedIndexChanged="ddlTypeCar_SelectedIndexChanged"
                  AutoPostBack="True" />
I could not get the javascript to execute, even though I removed OnSelectedIndexChanged="ddlTypeCar_SelectedIndexChanged" and/or set AutoPostBack="false".
Additionally, I tried added the following in xyz.ascx.cs Page_Load() method.
ddlTypeOfAddress.Attributes.Add("onchange", "javascript: testAlert();");
which didn't help.
Thanks for your help in advance.

Hi,
you can control client events instead of server events with javascript
look this url for more information
http://www.w3schools.com/js/js_events.asp
Regards

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Hi...
I'm trying to update a basic program to handle control events more efficiently. The program needs to perform the following functions on start button press:
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Thanks Charlie
Liao
and congrats to all :-)
* Charlie,
is there a new "Auto Spam Filter"?
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ReplyQuote

C# control event handling with javascript

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