Hi Christian,
Try the code below in the CurrentCellCloseDropDown event handler.
private void gridControl1_CurrentCellShowedDropDown(object sender, System.EventArgs e)
{
if (e.PopupCloseType == Syncfusion.Windows.Forms.PopupCloseType.Deactivated)
{
this.gridControl1.CurrentCell.ShowDropDown();
}
}
Here is the modified sample
http://www.syncfusion.com/Support/user/uploads/DropDownGrid3_cd0498a4.zipLet me know if this helps.
Thanks,
Rajagopal