Why Does .NET Render Javascript For A Button When There's A Custom Validator On The Page

Feb 1, 2011

I've got two questions - first of all, why does .net render a javascript onclick event for asp buttons when there's a custom validator on the same page, and secondly, how can I get rid of the javascript?

It works fine when javascript is turned off, so I don't know what the point of it is. Here's a mini example:

<form id="form1" runat="server">
<asp:Button ID="Button1" OnClick="Button1_Click" Text="test" runat="server" />
<asp:CustomValidator ID="CustomValidator1" runat="server"
OnServerValidate="Stuff_Validate" EnableClientScript="false">
</asp:CustomValidator>
</form>

This will generate the following html for the button:

<input type="submit" name="Button1" value="test" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("Button1", "", true, "", "", false, false))" id="Button1" />

Without the custom validator, it's:

<input type="submit" name="Button1" value="test" id="Button1" />

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