title: combobox c# displaymember valuemember dataset
body: <pre><code>Category ctg = new Category();
  DataSet ds = new DataSet();
  ds = ctg.query(_conn);
  cbCategory.DataSource = ds.Tables[0];
  cbCategory.DisplayMember = "Name";
  cbCategory.ValueMember = "ID";
  </code></pre>
  
  <p>in this case output : <br/>
  <br/>
  displaymember->valuemember<br/>
  e->1<br/>
  d->2<br/>
  c->3<br/>
  a->4<br/>
  b->5<br/>
  <br/>
  when i sort from properties combobox<br/>
  a->1<br/>
  b->2<br/>
  c->3<br/>
  d->4<br/>
  e->5<br/>
  <br/>
  what i want<br/>
  a->4<br/>
  b->5<br/>
  c->3<br/>
  d->2<br/>
  e->1<br/>
  <br/>
  anyone can help me?? what code i must add, without change any query sql</p>