Question

I have written a function in my .cs page. On the event onselectedindexchanged in .aspx I want to call this function.

How do I do this?

Answer 1

If you had the following method in your *.cs file:

public void DoSomething()
{
}

You could wrap the call in an event handler:

void RadioButtonList1_IndexChangedHandler(object sender, EventArgs e)
{
    DoSomething();
}

And your *.aspx code would look like:

<asp:RadioButtonList id="RadioButtonList1" 
        OnSelectedIndexChanged="RadioButtonList1_IndexChangedHandler"
        AutoPostBack="true"
        runat="server"/>