title: how to check the radio button is checked or not in windows form
body: <p>I have 3 pair of radiobutton at my form I want to check at every group of radiobutton one radiobutton is checked when user press save button. I used the below code to check every radiobutton, but I think this one a better approach to check. </p>
  
  <pre><code>if (radioBttnAddrssCoYes.Checked || rdoBttnAddCorrectNo.Checked)
  {
      if (rdoGroundFloorTrue.Checked || radioGroundFFalse.Checked)
      {
          if (rdoHomeTrue.Checked || radioMeet.Checked)
          {
              // Here I do something
          }
          else
          {
              MessageBox.Show("Please check Customer All day At Home");
          }
      }
      else
      {
          MessageBox.Show("Please Check Ground Floor Delivery");
      }
  }
  else
  {
      MessageBox.Show("Check Addresss Correct"); 
  }
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/Dqgq7.png" alt="Below is my form for better understanding"></p>
  
  <p>Thanks For your support and help</p>