title: Input string was not in a correct format - Converting textbox text to Int32
body: <pre><code>    Postalcode = Convert.ToInt32(txtcity.Text);
      Mobileno = Convert.ToInt32(txmobileno.Text);
      Phoneno = Convert.ToInt32(txtphoneno.Text);
  </code></pre>
  
  <p>I am getting this error please any one help</p>