I think as we try to create more RIA with HTML5, having multi column dropdown is very intuitive Similar example: http://demos.devexpress.com/aspxeditorsdemos/ASPxComboBox/LargeDataSource.aspx
I reopened this idea. http://kendoui-feedback.telerik.com/forums/127393-kendo-ui-feedback/suggestions/16282399-grid-in-combobox-reopen
Implemented as a treelist example - http://demos.telerik.com/kendo-ui/dialog/treelist-integration. Notice that the dialog may host any kind of data bound component, including a listview with checkboxes or grid - the various possibilities suggested implementing the scenario as a demo instead of a built-in feature.
The function is very important for me
The need for a multiple column combo box is very common in LOB applications
A Grid in ComboBox would be helpful for advandced filtering. In many cases we need filtering with other conditions which not only filtering with [Name] or [Title]. It's mostly used in accounting applications.
Or even like your own ajax combobox with the ability to access all columns upon selection.
Hey Telerik, how about it? That combo box is sweet. This is something that would really add some value to your product.
Multi column combobox is possible via .Template property, but to insert a Header row some wired constructs like jquerys prependTo is needed, which also is not working correct (Open a partial view a second time, the prependTo fails, list area grows not, so that the last entry is outside the combobox area ...) Also there is a wired hoover behaviour on the columns.