C# function and confirmation messages when clicking on button

//Define a c# function with the bool return type
bool ValueExecution()
{
if(radioButtonYes.IsChecked) return true;
else if(radioButtonNo.IsChecked) return false;
return false;
}

//Call the above function in your submit button
protected void Submit_Clicked(object sender, EventArgs e)
{
 if(ValueExecution()){
   Response.Write("You have clicked yes radio button");
  };
else {
  Response.Write("You have clicked no radio button");
   }
}