可以将数据网格视图组合框列更改为文本框列吗？

Question

if (ItemUnitsList.Count == 1)
{
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).DataSource = ItemUnitsList
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).DisplayMember = "UnitName";
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).ValueMember = "UnitId";  

how i define default selected item to first index

}
else if (ItemUnitsList.Count > 1)
{       
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).DataSource = ItemUnitsList;
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).DisplayMember = "UnitName";
        ((DataGridViewComboBoxCell)dataGridView1.Rows[i].Cells[2]).ValueMember = "UnitId";

how i define textchange event to this combobox column

}
else
{
        MessageBox.Show("NONE");
}

Answer 1

Once a column is created you can't change its type. There is no TextChanged event for DataGridViewComboboxColumn .

If you want to validate any change use the DataGridView.CellValidating event.

To learn about DataGridView see the tips given here .