As I posted on How to set the DefaultButton in a Page Based on ASP.NET Master Page, a DefaultButton property has been defined in the ASP.NET pages which can fire the onClick event in asp.net page when the Enter key is pressed. But I got another new problem: when I pressed Return key in a multiline textbox, a new line was not generated. Instead, the in-completed form was tried to be submitted.
And I found out it caused the problem only when I used Firefox, and I tested it in IE everything was fine.
According to the Microsoft Online Support, there is a in-compatible issue in ASP.net 2.0 generated Javascript.
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