button to only execute javascript and not postback (using code behind)

[Marcel Balcarek]

I want to create a button using code-behind that only executes javascript,
and does not post back to the server.

How can I do this - my ImageButton insists on posting back to the server.

Thank you

 

[Joe]

Hmmmm, you could check out the autopostback attribute or set the
autopostback property of your button to false if you are building it in a
codebehind.

Joe

 

[alex bowers]

hi,
any javascript run in the (client) onclick event of an
asp.net button will fire before any server side code, and
can prevent a postback to the server if you "return
false;" from the javascript.

alex

 

[Marcel Balcarek]

Thanks Joe, and Alex

Unfortunately, in my VB .NET the imagebutton does not have an autopostback
property / attribute.

The following works:

1) return false from the javascript call

Me.BoldImageButton.Attributes.Add("onclick",
"javascript:FormatText('testiframe', 'bold', '');return false")

2) ensure that the form does NOT have an onsubmit, as this will execute

<form id="Form1" onsubmit="return submitForm();" method="post"
runat="server"> -->

Thank you for your help.

Marcel

 

[Bin Song]

Why not just make it a simple HTML input button if you
don't need to post data back?

Bin Song
MCP