Gridview combobox column hide items programmatically

Question

I am trying to change the item collection programmatically in the Datagridview Combobox control.I have 3 items in Combobox which i get the datas from database;

[Item 1]

[Item 2]

[Item 3]

What i wanted to do is ;

If the combobox value is [Item 1] as a default, i can only select the [Item 2].I dont want to see the [Item 3] in the list.

Can anyone help me about this?

Answer 1

I solved via using CellBeginEdit event of datagrid and used cell.datasource,

private void dGV_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
    {
        DataGridViewRow row = dGV.Rows[e.RowIndex];

          if (item_type.ToString() == "item1")
            {
                try
                {
                     DataGridViewComboBoxCell cell = (DataGridViewComboBoxCell)(row.Cells[3]);
                     cell.DataSource = new string[] { "Item1","Item2"};
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
    }