Hi Stijn Vandeputte,
Thank you for contacting us.
At the moment the only control designed to handle multiple selection is RadListControl. Once you have set the SelectionMode
property of RadListControl to MultiSelect
, you will be able to select multiple items.
However, your post implies that you would like to display the items in a control which supports the drop down menu. If this is your case, the most natural control to use will be RadDropDownList. Although the multiselect behavior of this control is not by design, such customization could be achieved. This approach is demonstrated in the Create New Items
example in our Demos (when installed: Start Button >> Programs >> Telerik >> RadControls for WinForms [version] >> Run Demos).
While developing your application, please have in mind that the best control to use for multiple selection is RadListControl. However, if you insist on using RadDropDownList, please feel free to use the example code. In case you encounter any difficulties customizing further the control, please let me know. I will be glad to assist you.
All the best,
the Telerik team
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