DataGridViewComboBoxCell.ReadOnly = true，但仍可以更改所选值 [英] DataGridViewComboBoxCell.ReadOnly = true, but can still change the selected value

问题描述

我在C＃中使用DataGridView和DataGridViewComboBoxCell感到困难（Visual Studio 2013，.NET 4.5.1）

I am strugling with a problem with DataGridView and DataGridViewComboBoxCell in C# (Visual Studio 2013, .NET 4.5.1)

DataGridView具有3列，其中DataGridViewComboBoxColumn和3

The DataGridView has 3 columns with DataGridViewComboBoxColumn and 3 columns with DataGridViewTextBoxColumn.

DataGrid绑定到DataTable

The DataGrid is bound to a DataTable

我需要分别为每个单元格：

I need to set the readonly property individually for each cell:

对于现有行：
只有最后一个单元格（DataGridViewTextBoxCell）才是可编辑的。

For existing rows: Only the last cell (DataGridViewTextBoxCell) shall be editable.

添加新行时，除两个文本框单元格外的所有单元格均应可编辑。

When adding new row, all cells except two textbox cells shall be editable.

我的问题是，即使ReadOnly，最终用户仍然可以更改DataGridViewComboBoxCells的选择= true;

My problem is that the end user can still change the selection of the DataGridViewComboBoxCells even when ReadOnly = true;

在DataGridViewTextBoxCells上设置ReadOnly = true很好

Setting ReadOnly=true on DataGridViewTextBoxCells works fine

在DataGridViewComboBoxCell上设置ReadOnly = true无效。
写出ReadOnly属性时，它返回true，但单元格仍可编辑。

Setting ReadOnly=true on DataGridViewComboBoxCell has no effect. When writing out the ReadOnly property, it returns true, but the cell is still editable.

推荐答案

DataGridView.CellBeginEdit 中的类似代码：

If Not <your code to verify if you are adding a new row> Then
    If Not YourDataGridView.Columns(e.ColumnIndex).Name = "EditableColumnName" Then
        e.Cancel = True
    End If
End If

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