title: keypress event in datagrid view?
body: <p>I need to write a simple function that when the person enter number of boxes then keypress event fired and <code>number of boxes*someamount</code> get in to the amount column. I have added datagridview using drag and drop control</p>
  
  <p><img src="https://i.imgur.com/Off4x.jpg"></p>
  
  <p>I think so code will be written here according to my research</p>
  
  <pre><code>private void dataGridView1_EditingControlShowing(object sender,
      DataGridViewEditingControlShowingEventArgs e) {
  
  }
  </code></pre>
  
  <p>But i dont know how to put Keyup event and access column <code>numberofboxes and Amount</code>. Thanks</p>