#1 Plantage au clic sur dropdown sur la page attribut

[Anonymous]

Quand on clique sur la drodown personnage dans la page attribut, on a une exception non catchée.
System.Data.ConstraintException: Column 'Personnage' is constrained to be unique. Value '2' is already present.
at System.Data.UniqueConstraint.CheckConstraint(DataRow row, DataRowAction action)
at System.Data.DataTable.RaiseRowChanging(DataRowChangeEventArgs args, DataRow eRow, DataRowAction eAction, Boolean fireEvent)
at System.Data.DataTable.SetNewRecordWorker(DataRow row, Int32 proposedRecord, DataRowAction action, Boolean isInMerge, Int32 position, Boolean fireEvent, Exception& deferredException)
at System.Data.DataTable.SetNewRecord(DataRow row, Int32 proposedRecord, DataRowAction action, Boolean isInMerge, Boolean fireEvent)
at System.Data.DataRow.SetNewRecord(Int32 record)
at System.Data.DataRow.EndEdit()
at System.Data.DataRow.SetKeyValues(DataKey key, Object[] keyValues)
at System.Data.DataRow.SetParentRow(DataRow parentRow, DataRelation relation)
at ShadowrunPC.ControlGenerator.parentComboBox_SelectedValueChanged(Object sender, EventArgs e)
at System.Windows.Forms.ListControl.OnSelectedValueChanged(EventArgs e)
at System.Windows.Forms.ComboBox.OnSelectedValueChanged(EventArgs e)
at System.Windows.Forms.ComboBox.OnSelectedIndexChanged(EventArgs e)
at System.Windows.Forms.ComboBox.WmReflectCommand(Message& m)
at System.Windows.Forms.ComboBox.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)