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c#asp.netradiobuttonlistselectedindexchanged

SelectedIndexChanged for multiple RadionButtonList

I have 3 RadionButtonList that are wired to same SelectedIndexChanged event, intentionally. Is there a way to ascertain in the event which RadioButtonList just had one of its items clicked programmatically?

Solution

  • You can use the ID attribute of your RadioButtonList objects to do this, and just get the ID of the sender object whenever the event is fired.

    protected void RadioButtonList_SelectedIndexChanged(object sender, EventArgs e)
{
    string listName = ((RadioButtonList)sender).ID
    // listName = RadioButtonList1 or RadioButtonList2 or whatever the ID is set to.

    if (listName == "RadioButtonList1")
    {
        // Rest of your code goes here, now that you know which RadioButtonList the event was fired from
    }
}