如何使DataGridViewComboBoxColumn能够接受新值

Question

如题

Answer 1

DataGridViewComboBoxCell cb = (DataGridViewComboBoxCell)dataGridView1.Rows[0].Cells[0];
cb.Value = "2";

Answer 2

动态生成ComboBox
private ComboBox combo = null;
private Panel p = null;private void dataGridView1_CellEnter(object sender, DataGridViewCellEventArgs e)
        {
            if (e.ColumnIndex == 1)
            {
                dataGridView1.BeginEdit(true);
            }
        }        private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
            if (e.ColumnIndex == 1)
            {
                try
                {                    dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = combo.Text;                    if (p != null)
                    {
                        p.Hide();
                        p = null;
                    }
                }
                catch
                {
                    
                }
                finally
                {
                }
            }
        }        private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
        {
            if (e.ColumnIndex == 1)
            {
                int row = e.RowIndex;
                int column = e.ColumnIndex;                Rectangle r = dataGridView1.GetCellDisplayRectangle(column, row, false);                if (p == null)
                {
                    p = new Panel();
                    p.BackColor = Color.White;
                    p.Parent = dataGridView1;
                    //combo.KeyPress += new KeyPressEventHandler(combo_KeyPress);
                    if (dataGridView1.Rows[row].Cells[column].Value != null)
                    {
                        combo.Text = dataGridView1.Rows[row].Cells[column].Value.ToString();
                    }
                    else
                    {
                        combo.Text = "";
                    }
                    combo.Dock = DockStyle.Top;
                    combo.Parent = p;
                }                p.Width = r.Width - 1;
                p.Height = r.Height;
                p.Top = r.Top;
                p.Left = r.Left;                p.Show();
            }
        }        private void dataGridView1_Scroll(object sender, ScrollEventArgs e)
        {
            if (p != null)
            {
                p.Hide();
            }
        }