Vb.net Datagridview单元格长度

当我使用以下代码填充Datagridview时：

Private Sub FormatGridView()
    Dim ILNumColumn As New DataGridViewTextBoxColumn
    Dim ArtNumColumn As New DataGridViewTextBoxColumn
    Dim DescColumn As New DataGridViewTextBoxColumn

    'Header text
    ILNumColumn.HeaderText = "# IL"
    ArtNumColumn.HeaderText = "# Articles"
    DescColumn.HeaderText = "Description"

    'Wrap
    DescColumn.DefaultCellStyle.WrapMode = DataGridViewTriState.True

    'Widths
    ILNumColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
    ArtNumColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
    DescColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill

    'Add columns
    dgvArticles.Columns.Add(ILNumColumn)
    dgvArticles.Columns.Add(ArtNumColumn)
    dgvArticles.Columns.Add(DescColumn)
End Sub

ILNumColumn.MaxInputLength = 3

我希望

ILNumColumn

在其单元格中接受的数字不超过3个

我尝试了以下代码：

Private Sub FormatGridView()
    Dim ILNumColumn As New DataGridViewTextBoxColumn
    Dim ArtNumColumn As New DataGridViewTextBoxColumn
    Dim DescColumn As New DataGridViewTextBoxColumn

    'Header text
    ILNumColumn.HeaderText = "# IL"
    ArtNumColumn.HeaderText = "# Articles"
    DescColumn.HeaderText = "Description"

    'Wrap
    DescColumn.DefaultCellStyle.WrapMode = DataGridViewTriState.True

    'Widths
    ILNumColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
    ArtNumColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells
    DescColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill

    'Add columns
    dgvArticles.Columns.Add(ILNumColumn)
    dgvArticles.Columns.Add(ArtNumColumn)
    dgvArticles.Columns.Add(DescColumn)
End Sub

ILNumColumn.MaxInputLength = 3

没用了，我还能写“9999”。。。当我到达“999”时，那个密码不应该阻止我打字吗？我知道可以使用各种datagridview事件来实现这一点，但我想知道在向datagridview添加列时是否可以实现这一点

---

谢谢

嗯，我找不到MaxInputLength的替代方案，所以我使用了一个CellValidating事件

Private Sub dgvArticles_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvArticles.CellValidating
    'Ensures only numeric values are entered in these fields
    If e.ColumnIndex = 0 Then
        If e.FormattedValue <> "" And (e.FormattedValue < 0 Or e.FormattedValue >= 1000) Then
            MsgBox("IL # must be greater than 0 and less than 1000")
            e.Cancel = True
        End If
    End If
End Sub

Private子dgvArticles\u CellValidating（ByVal sender作为对象，ByVal e作为System.Windows.Forms.DataGridViewCellValidatingEventArgs）处理dgvArticles.CellValidating
'确保在这些字段中只输入数值
如果e.ColumnIndex=0，则
如果e.FormattedValue“”和（e.FormattedValue<0或e.FormattedValue>=1000），则
MsgBox（“IL#必须大于0且小于1000”）
e、 取消=真
如果结束
如果结束
端接头

是否有类似于

e.FormattedValue

处理字符串的方法？