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Private Sub GridControl1_CurrentCellValidateString(ByVal sender As Object, ByVal e As GridCurrentCellValidateStringEventArgs) Handles GridControl1.CurrentCellValidateString
Dim cc As GridCurrentCell = Me.GridControl1.CurrentCell
''check only column 1 for example....
If cc.ColIndex <> 1 Then
Return
End If
Try
If e.Text <> "." Then
Dim d As Double = Double.Parse(e.Text)
End If
Catch
e.Cancel = True
Return
End Try
End Sub