如何不使用if子句而获得所选单选按钮的文本？

Question

I have aq Windows Forms application with a variable large number of Radio Buttons (50+). I have an event handler for all the Radio Buttons:

private void RadioButton_CheckedChanged(object sender, EventArgs e)
{
    if(sender == (RadioButton)radioButton1)
    {
         selectedItem = radioButton1.Text;
    }
    else
    {
         selectedItem = radioButton2.Text;
    }
}

That works fine for two Radio Buttons. How can I get the text of the selected Radio Button without to use the if clause? Thank you iin advance, Paul

Answer 1

Like this; but you also need to check if it's checked because the event fires when a radio button is de-checked as well, see :

private void RadioButton_CheckedChanged(object sender, EventArgs e)
{
    //cast and store for future use.
    var senderRadioButton = (RadioButton)sender; 

    //check if sender is checked
    if (senderRadioButton.Checked)
        selectedItem = senderRadioButton.Text;

    //else
}

Make sure you wire all your changed events to this handler.