error appear when filtering in mutlicolumn combobox

[elie]

hello i am facing this problem : for any keypress on the combobox, the window where I use this multicolumn combo box is closing and this error appears:
"System.InvalidCastException: Unable to cast object of type 'Telerik.WinControls.UI.RadMultiColumnComboBox' to type 'Telerik.WinControls.UI.RadGridView'."
i am using q2 2009.
thanks in advance

[Jack]

Hello elie,

This issue is addressed in Q2 2009 SP1. However, I recommend that you try our latest release - Q1 2012. It contains a lot of new features and controls. We will appreciate your feedback regarding them.
 
All the best,
Jack
the Telerik team