Is there a way to show multiple columns in a combo box when the user clicks the drop down arrow? If not, does anyone have any ideas of how to implement this functionality?

Hello Aaron,

There is a suggestion in the support center which you can track:

ASPxComboBox - ability to represent data in several columns in the dropdown list is required

You can also try to return a new field in the select statement that combines the fields you want to display and use this for the text field property:

SELECT CustomerID, CompanyName, ContactName, CompanyName + ' - ' + ContactName AS CompanyContact FROM Customers

Thanks.

 hi i 'd like to know how we populate this combo using linq query...can u show

it by taking above example...pls provide c# code....

 its not an actual combo box persay, if you look at the example in the link above, its an ASPxButtonEdit control with an ASPxGridView embedded in an ASPxPopupControl.  all you need to do is write your linq query for the ASPxGridView.