What a strange behavior in AuotComplete in DataGridViewCombobox Column ?

Question

Hi ...
I am using the (EditingControlShowing) event to Enable AutoComplete in DataGridViewComboBox Column.

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
if (e.Control is DataGridViewComboBoxEditingControl)
{
ComboBox combo = (ComboBox)e.Control;
((ComboBox)e.Control).DropDownStyle = ComboBoxStyle.DropDown;
((ComboBox)e.Control).AutoCompleteSource = AutoCompleteSource.ListItems;
((ComboBox)e.Control).AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend;

}
}
but it has a strange behavior , when I type some characters then I leave the cell (Tab or right key) , the value did not change .
But if I repeat that, the value will change.
I attached the source code and (EXE) video to explain the problem.
could you please help me to make it works correctly .
thanks in advanced.

Houssam · Answer

I solved it like this : private void dataGridView1_EditingControlShowing(object sender DataGridViewEditingControlShowingEventArgs e) { if (e.Control is DataGridViewComboBoxEditingControl) { ComboBox combo = (ComboBox)e.Control; ((ComboBox)e.Control).DropDownStyle = ComboBoxStyle.DropDown; ((ComboBox)e.Control).AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend; ((ComboBox)e.Control).AutoCompleteSource = AutoCompleteSource.ListItems; combo.Validated -= new EventHandler(combo_Validated); combo.Validated += new EventHandler(combo_Validated); } } public static object GetPropValue(object src string propName) { if (src == null) return null; return src.GetType().GetProperty(propName).GetValue(src null); } void combo_Validated(object sender EventArgs e) { Object selectedItem = ((ComboBox)sender).SelectedItem; DataGridViewComboBoxColumn col = (DataGridViewComboBoxColumn)dataGridView1.Columns[dataGridView1.CurrentCell.ColumnIndex]; if (!String.IsNullOrEmpty(col.ValueMember)) dataGridView1.CurrentCell.Value = GetPropValue(selectedItem col.ValueMember); else dataGridView1.CurrentCell.Value = selectedItem; }