HtmlInputImage causes postback in control

[Nathan]

Hi, I have a custom control, and one of my child controls that I want is an image button.  If I do a regular input btn:

System.Web.UI.HtmlControls.HtmlInputButton, then I can run a javascript function directly:

System.Web.UI.HtmlControls.HtmlInputButton hSaveBtn = new System.Web.UI.HtmlControls.HtmlInputButton ();
hSaveBtn.ID = "saveBtn";
hSaveBtn.Name = "saveBtn";
hSaveBtn.Value = "save";
hSaveBtn.Attributes.Add ( "onclick", ID + @"InPlace.saveTiny();" );

And it doesn't do a postback ( it works correctly )

But interestingly enough if I have an Image button, it causes a postback, which really screws things up. 

System.Web.UI.HtmlControls.HtmlInputImage hSaveBtn = new System.Web.UI.HtmlControls.HtmlInputImage();
hSaveBtn.ID = "saveBtn";
hSaveBtn.Name = "saveBtn";
hSaveBtn.Src = "~/OMWAImages/Crystal_Clear_action_apply.png";
hSaveBtn.Attributes.Add ( "onclick", ID + @"InPlace.saveTiny();" );

Any hints?

[Zan]

you need to prevent the default action from occurring, you can do this by appending return false to the onclick code

hSaveBtn.Attributes.Add ( "onclick", ID + @"InPlace.saveTiny(); return false;" );