Hello David,

Thank you for this question.

The column chooser form is designed to work with RadGridView control and it is not available when using RadMultiColumnComboBox. We are not sure whether this is a suitable scenario, please elaborate a bit more and describe the exact situation where you need a column chooser with RadMultiColumnComboBox. Thank you in advance.

I am looking forward to your reply.
 
Regards,
Jack
the Telerik team

Hi,

What I'm looking at is we use the RadMultiColumnComboBox to allows user to select a set code from a lookup table (ComboBox DataSource)

So nomally the ComboBox would display one column for code and one for descriptions. There are some lookup tables that hold more information about the code other then just description for example "Manager". Not all users will use the manager field so the data would only be relative to some users (All use code/Description). So I was hoping to find a way where the user could add aditional columns to the ComboBox at runtime, if they would like to see the information in the other Columns.

Thakns
David

Hi David,

Thank you for these details. Now I understand your scenario. In this case you can add a check box which shows/hides the extra column using the following code:

I hope it helps.
 
Greetings,
Jack
the Telerik team