Check for valid date when editing in DataGridView

Hi folks,

I have a datagridVoew control. One of the colums is set up like this...

grdPurchaseLedger.Columns[colNum].Name = "docDate";
grdPurchaseLedger.Columns[colNum].HeaderText = "Date";            
grdPurchaseLedger.Columns[colNum].DataPropertyName = "docDate";
grdPurchaseLedger.Columns[colNum].Width = 120;         
grdPurchaseLedger.Columns[colNum].DefaultCellStyle.Format = "d";           
grdPurchaseLedger.Columns[colNum].DefaultCellStyle.ForeColor = Color.Blue;
grdPurchaseLedger.Columns[colNum].ReadOnly = false;

If the user tried to change the date to an invalid date eg 12345 then I get the following error message

System.FormatException: 'String was not recognized as a valid DateTime.....

Is there any way I can check the date value myself to prevent the default error message from appearing ?

I have tried using the CellEndEdit event but the default message still appears. 

Thanks,

John

jppnn