title: C# Winforms visual inheritance problem with DataGridView
body: <p>From <a href="https://stackoverflow.com/questions/3994772/what-is-the-standard-approach-for-event-handling-in-case-of-visual-inheritance">here</a> I have created a <code>BaseForm</code>, then set all its <code>BaseForm.Designer.cs</code> <code>private</code> members to <code>protected</code>. Then has had a visually inherited/derived <code>Form</code>.</p>
  
  <p>Now I am able to re-size or modify all the controls in the derived <code>Form</code> in design-time except the <code>DataGridView</code>. I am finding the <code>DataGridView</code> as locked in the derived <code>Form</code>, even though it is not locked in the <code>BaseForm</code>. </p>
  
  <p>What can be the reason? What should I look/check for again?</p>
  
  <p>I have a base form like this: <img src="https://i.stack.imgur.com/VcdXs.jpg" alt="alt text"></p>
  
  <p>And I have derived a form like this: <img src="https://i.stack.imgur.com/u0KPL.jpg" alt="alt text"></p>