title: Repository Combo BoxEdit EditValueChanged fires many times while typing.
body: <p>I have this Repository Item comboboxEdit in a Devexpress CustomGridView.</p>
  
  <pre><code>private void gridView1_CustomRowCellEditForEditing(object sender, DevExpress.XtraGrid.Views.Grid.CustomRowCellEditEventArgs e)
  {
   if (e.Column == this.gcCol1)
      {
          var repositoryItem = new RepositoryItemComboBox();
          foreach (var title in this.ViewModelList.Titles)
              {
                  repositoryItem.Items.Add(title.TitleName);
              }
              repositoryItem.EditValueChanged += this.PostEditValueChanged;
              repositoryItem.Validating+=this.validating;
              e.RepositoryItem = repositoryItem;
      }
  }
  private void PostEditValueChanged(object sender, EventArgs e)
  {
       this.gridView1.PostEditor();
  
  }
  </code></pre>
  
  <p>EditValueChanged fires many times while typing. Is there a way to fire this EditValueChanged once after the user has completely finished editing the cell.
  Something along these lines <a href="http://www.devexpress.com/Support/Center/Question/Details/Q288616" rel="nofollow">http://www.devexpress.com/Support/Center/Question/Details/Q288616</a>
  Devexpress Support had some fix for this problem but didn't seem to help. 
  Not sure why the activeedior is closing and resetting the cursor.
  I don't want to be setting the caret position in EditValueChanged.</p>
  
  <p>I also tried CellvalueChanged but this would require a click in the usercontrol. 
  Same with repository.validating</p>
  
  <pre><code> repositoryItem.EditValueChanged += this.PostEditValueChanged;
   repositoryItem.Validating+=this.validating;
  </code></pre>
  
  <p>Is there a way to figure out if the user is done or still editing the combox box and then fire the editvaluechanged without having to worrying out clicks outside the combo box edit</p>