[Solved] Custom Editors in RadGrid

[Maxim Tairov]

Hello Telerik!

I have use RadControls for ASP.NET AJAX 2008 3 1314

In my project I use custom editors in RadGrid. Everything works fine while I don't use custom editor for GridDropDownColumn. For this column type, custom editor doesn't work properlly when EnableEmptyListItem = true.

In this case column try to convert my custom editor to GridDropDownListColumnEditor (instead of GridDropDownColumnEditor).

See your code (method GridDropDownColumn.OnDataBindColumn())

if (this.EnableEmptyListItem)
  {
    if (this.DropDownControlType == GridDropDownColumnControlType.RadComboBox)
    {
      if (((GridDropDownListColumnEditor) this.DropDownListEditor).ComboBoxControl.FindItemByValue(this.EmptyListItemValue) == null)
      {
        RadComboBoxItem item3 = new RadComboBoxItem(this.EmptyListItemText, this.EmptyListItemValue);
        ((GridDropDownListColumnEditor) this.DropDownListEditor).ComboBoxControl.Items.Insert(0, item3);
      }
    }
    else if (((GridDropDownListColumnEditor) this.DropDownListEditor).DropDownListControl.Items.FindByValue(this.EmptyListItemValue) == null)
    {
      ListItem item5 = new ListItem(this.EmptyListItemText, this.EmptyListItemValue);
      ((GridDropDownListColumnEditor) this.DropDownListEditor).DropDownListControl.Items.Insert(0, item5);
    }
  }

In latest realse situation the same. Please fix it or explain how can I use custom editor with GridDropDownColumn and use EnableEmptyListItem property. 

[Tsvetoslav]

Hi Maxim Tairov,

Please, find attached a small sample demonstrating how to implement a custom editor for the drop down column of the grid.

Best Regards,
Tsvetoslav
the Telerik team

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