title: How to set checkstate of particular item in repositoryItemCheckedComboBoxEdit which is bound to datasource?
body: <p>I'm having <code>repositoryItemCheckedComboBoxEdit</code> which is placed in <code>BarEditItem</code>. I want to bind a datasource to the <code>repositoryItemCheckedComboBoxEdit</code>. </p>
  
  <p>For that I used the <code>datasource</code> property of <code>repositoryItemCheckedComboBoxEdit</code>. But I'm unable to set the <code>checkstate</code> to checked or unchecked in the datasource for each item in <code>datasource</code>. How do I solve this problem?</p>