Question

VB.NET中的DATAGRIDVIEW怎样只能在表格中输入数字呢

如标题

Answer 1

第一部、先定义一个单元格操作变量，如下
Dim cellEdit As DataGridViewTextBoxEditingControl = Nothing
第二部、然后在在控件的EditingControlShowing事件中添加入下代码，参考如下：
Private Sub DataGridView3_EditingControlShowing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles DataGridView3.EditingControlShowing
cellEdit = CType(e.Control, DataGridViewTextBoxEditingControl)
cellEdit.SelectAll()
AddHandler cellEdit.KeyPress, AddressOf dataGridView3_KeyPress
End Sub
第三部：在要控制的列加入控件键盘按钮的代码，如下面ROLL列是要控制的列
Private Sub dataGridView3_KeyPress(ByVal sender As Object, ByVal e As KeyPressEventArgs) Handles DataGridView3.KeyPress
Dim i As Integer = DataGridView3.CurrentCellAddress.X
Dim ColumnName As String = DataGridView3.Columns(i).Name

If (ColumnName = "rollno") Then
If Not Char.IsDigit(e.KeyChar) And e.KeyChar <> Chr(8) Then
e.Handled = True
End If
End If
End Sub

Answer 2

http://bbs.csdn.net/topics/390501048