I have 2 radio buttons in a form:

<asp:RadioButton ID="radio1" Runat="server" GroupName="RadioGroup1" Text="Short Form" Checked="True" AutoPostBack="True" OnCheckedChanged="getSelected"></asp:RadioButton>
<asp:RadioButton ID="radio2" Runat="server" GroupName="RadioGroup1" Text="Long Form" AutoPostBack="True" OnCheckedChanged="getSelected"></asp:RadioButton>


public void getSelected(object sender,System.Eventags e)
{
// blah blah....
}

There are still a lot of texboxes and validation check in the form

I have another textbox which needs to appear only when I select "Short Form". I did not know why it did not trigger getSelected at all. I paid attention to the left corner of the browser it said "Error on Page". I don't know how to bug this

Thanks for figure out my problem.