C# 隐藏datagridview单元格问题 <紧急求助>
在datagridview中单元格的值有的为1，有的为空，我现在想隐藏掉值为空的单元格，禁止对值为空的单元格操作，应该怎么做？

------解决方案--------------------
private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{

if (e.Value == null)
{
dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].ReadOnly = true;
}
}
------解决方案--------------------

C# code

for (int i = 0; i < dgv_Meet.Rows.Count; i++)
                {
                    for (int k = 0; k < dgv_Meet.Columns.Count; k++)
                    {
                        if (dgv_Meet.Rows[i].Cells[k].Value == null)
                            dgv_Meet.Rows[i].Cells[k].ReadOnly = true;
                    }
                }