title: Check several date formats using DateTime.TryParse()
body: <p>I'm using a method to validate textboxes.</p>
  
  <pre><code>    public bool ValidateDateTimeTextBoxes(params TextBox[] textBoxes)
      {
          DateTime value = DateTime.Today;
          //string dateFormat = "dd/mm/yyyy";
  
          foreach (var textBox in textBoxes)
          {
              if (!DateTime.TryParse(textBox.Text, out value))
              {
                  return false;
              }
          }
  
          return true;
      }
  </code></pre>
  
  <p>I want to check the format too. It requires <code>mm/dd/yyyy</code>, but want it to be <code>dd/mm/yyyy</code></p>