ADAdministrator Syncfusion Team March 16, 2005 07:37 AM
If you are using it as a standalone control, there is a property, gridListControl1.MultiColumn that you set to enable it. If you are using it in a dropdown cell in another grid, then it should show multicolumns if the DataSource you set has them.
Take a look at \Syncfusion\Essential Suite\22.214.171.124\Windows\Grid.Windows\Samples\Quick Start\GridListControlSample and \Syncfusion\Essential Suite\126.96.36.199\Windows\Grid.Windows\Samples\CellTypes\ComboboxCells. The first sample shows a multicolumn stand-alone GridListCOntrol, and the second one has several dropdown cells with multicolumn GridListControls.