Thank you for writing.
The multi-line text is achieved through the Text and Description properties of the item in RadComboBox
. However, RadComboBox is now obsolete and has been replaced by the RadDropDownList
. The latter control does not have integrated functionality for Text and Description. In order to achieve such behavior, you will need to customize the RadDropDownList control. Attached, you can find a sample project which demonstrates such functionality through the use of a custom RadListVisualItem.
Additionally, you can see a scenario of binding the new control to a DataTable.
The control that you are referring to is RadMultiColumnComboBox
which consists of a RadGridView in a drop down. The image mentioned shows a GridViewComboBoxColumn
which was previously using the RadComboBox
control internally. After the release of RadDropDownList
control we replaced the combo box in the grid column with RadDropDownList
, which means that the Text and Description functionality is no longer available. If you need it in a column in the grid, then you should implement it manually.
I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.
the Telerik team
Q1’11 SP1 of RadControls for WinForms is available for download
; also available is the Q2'11 Roadmap
for Telerik Windows Forms controls.