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How can I block postback caused by an ASP.NET Button (or, any other) server control?

I.e. I shall push a Button but no postback will occur.

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5 Answers 5

Reset to default
3

do this

button.Attributes.Add("onclick", "return false;")

on page load.

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you could use the 

OnClientClick="return false;"

property of the button

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oops I was focused on the button. Slipped my mind that he wanted it to work for any control.
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<asp:button runat="server" ... OnClientClick="return false" />
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You could use AJAX controls that do callbacks instead of postbacks for another possibility besides the Javascript "return false;" answer.

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You can make the client side validation fail for the control's validation group. Depending on what you're trying to do, that might be a nicer solution.

You can piggyback on the JavaScript run for each postback as well, but showing you from the top of my head while typing on a mobile phone... maybe not. I'll update this post when I get home.

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