Question

我有一个datagridview，它允许用户在其上输入数据。我希望如果当前行中第一个Cell的值为Null / Empty，则同一行中的所有其他单元格都设置为readonly = true，一旦用户在第一个单元格中输入内容，则将另一个单元格设置为readonly = false。我希望每次将新行添加到datagridview时都会发生这种情况。

我已经在datagridview的RowsAdded事件中尝试了这个，但是它没有设置为readonly。

     if (dgvMaterials.Rows[e.RowIndex].Cells["ItemID"].Value == null)
        {
            dgvMaterials.Rows[e.RowIndex].Cells["Description"].ReadOnly = true;
            dgvMaterials.Rows[e.RowIndex].Cells["Qty"].ReadOnly = true;
            dgvMaterials.Rows[e.RowIndex].Cells["Cost"].ReadOnly = true;
        }

Answer 1

private void dgvMaterials_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
    if (dgvMaterials.Rows[e.RowIndex].Cells["ItemID"].Value != null)
    {
        dgvMaterials.Rows[e.RowIndex].ReadOnly = true;  // set all row as read-only
        dgvMaterials.Rows[e.RowIndex].Cells["ItemID"].ReadOnly = false;  //except ItemID-cell
    }
}

private void dgvMaterials_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
    if (e.ColumnIndex == dgvMaterials.Columns["ItemID"].Index)  //if the ItemID-cell is edited
    {
        dgvMaterials.Rows[e.RowIndex].ReadOnly = true;  // set all row as read-only
        dgvMaterials.Rows[e.RowIndex].Cells["ItemID"].ReadOnly = false;  //except ItemID-cell
    }
}

Datagridview将单元格设置为readOnly，第一个单元格除外

1 个答案: