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RadMultiColumnComboBoxElement AutoGenerateColumns not working

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GridView
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Saif
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Saif asked on 06 May 2014, 08:41 AM
Hi,

Im trying to bind datatable in GridView GridViewMultiComboBoxColumn

GridViewMultiComboBoxColumn col = new GridViewMultiComboBoxColumn();
      col.DataSource = dtCash;
      col.DisplayMember = "Name";
      col.ValueMember = "td";
      col.FieldName = "Id";
      col.Name = "Description";
      col.HeaderText = "Name";
      col.DropDownStyle = RadDropDownStyle.DropDown;
      this.gridView.Columns.Add(col);

bool isColumnAdded;
    private void gridView_CellEditorInitialized(object sender, GridViewCellEventArgs e)
    {
      if (this.gridView.CurrentColumn is GridViewMultiComboBoxColumn)
      {
        if (!isColumnAdded)
        {
          isColumnAdded = true;
          RadMultiColumnComboBoxElement editor = (RadMultiColumnComboBoxElement)this.gridView.ActiveEditor;
          editor.AutoFilter = true;

          editor.EditorControl.MasterTemplate.AllowAddNewRow = false;
          editor.EditorControl.MasterTemplate.AllowCellContextMenu = false;
          editor.EditorControl.MasterTemplate.AllowColumnChooser = false;
          editor.EditorControl.MasterTemplate.AutoGenerateColumns = false;
          editor.EditorControl.MasterTemplate.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
          editor.EditorControl.MasterTemplate.AllowRowResize = false;

          GridViewTextBoxColumn colCode = new GridViewTextBoxColumn();
          GridViewTextBoxColumn colName = new GridViewTextBoxColumn();
          colCode.FieldName = "Code";
          colCode.HeaderText = "Code";
          colCode.Name = "Code";
          colName.FieldName = "Name";
          colName.HeaderText = "Name";
          colName.Name = "Name";
          colName.IsVisible = false;
          editor.EditorControl.MasterTemplate.Columns.AddRange(new GridViewDataColumn[] {
            colCode,
            colName});
          editor.AutoSizeDropDownToBestFit = true;

          FilterDescriptor filterDescriptor = new FilterDescriptor();
          filterDescriptor.PropertyName = "Name";
          filterDescriptor.Operator = FilterOperator.Contains;
          editor.EditorControl.MasterTemplate.FilterDescriptors.AddRange(new FilterDescriptor[] {
            filterDescriptor});
        }
      }
    }


I Set the AutoGenerateColumns to true to show only two columns i want.. but when i run, all columns coming from the datable also shows.

I dont know exactly what is wrong with my code.

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Dimitar
Telerik team
answered on 07 May 2014, 02:52 PM
Hello Saif,

Thank you for writing.

In this case you should use the CellBeginEdit event instead of CellEditorInitialized, because in the second the underlying grid is already initialized and it already has some columns. Detailed information is available in the following article: GridViewMultiComboBoxColumn.

Also please note that the column that is used as ValueMember should exist in the underlying grid even if it is not visible. 

Let me know if you have additional questions.

Regards,
Dimitar
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Saif
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answered on 10 May 2014, 05:47 AM
Thanks Dimitar
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Saif
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