wpf下Flexgrid的c1comboBox列模糊查询

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版主：您好，麻烦帮看下 wpf下Flexgrid的c1comboBox列模糊查询的问题：
1、Xaml设置flexgrid的列：

   <c1:C1FlexGrid.Columns>
            <c1:Column Header="姓名" HeaderHorizontalAlignment="Center">
                  <c1:Column.CellEditingTemplate>
                     <ItemContainerTemplate>
                        <c1:C1ComboBox IsEditable="True" KeyUp="UIElement_OnKeyUp" >
                        </c1:C1ComboBox>
                     </ItemContainerTemplate>
                  </c1:Column.CellEditingTemplate>
            </c1:Column>
            <c1:Column Header="代码" HeaderHorizontalAlignment="Center"></c1:Column>
         </c1:C1FlexGrid.Columns>
         <c1:C1FlexGrid.Rows>
            <c1:Row></c1:Row>
            <c1:Row></c1:Row>
         </c1:C1FlexGrid.Rows>
  2、窗体构造函数 Flexgrid绑定datatable:
   //C1FlexGrid数据源
         DataTable dt = new DataTable();
         dt.Columns.Add("Name", Type.GetType("System.String"));
         dt.Columns.Add("ComList", Type.GetType("System.Int16"));
         DataRow dr = dt.NewRow();
         dt.Rows.Add(dr);
         dr = dt.NewRow();
         dt.Rows.Add(dr);
         FlexGrid.ItemsSource = dt.DefaultView;
3、窗体的loaded事件:
   employee = new Dictionary<int, string>();
         employee.Add(1, "张三");
         employee.Add(2, "张四");
         employee.Add(3, "赵五");
         employee.Add(4, "赵六");
4、OnKeyUp事件：
   private void UIElement_OnKeyUp(object sender, KeyEventArgs e)
      {
         FlexGrid.StartEditing(true);
         var cb = sender as C1ComboBox;
         if (cb == null) return;
         if (cb.IsDropDownOpen) return;
         var name = cb.Text;
         var value = from pair in employee where pair.Value.Contains(name) select pair;
         if (value.Any())
         {

            cb.Items.Clear();
            foreach (var item in value)
            {
                  cb.Items.Add(item.Value);
            }
         }
         //cb.EditCompleted= true;
         //cb.Focus();
         FlexGrid.StartEditing(false);
      }
5、单元格中输入字符：

  但焦点离开单元格内容和查询结果消失，

6、查询结果出现在当前列的所有行，能否只限定在当前行？

   谢谢！