DataGridView是.net2.0的一个新增数据控件，功能比DataGrid增强了很多，但是并没有CellKeyPress事件来限制文本列的输入。我利用一个新增的事件EditConTrolShowing解决这个问题。
Private EditingControl As DataGridViewTextBoxEditingControl
Private Sub datagridview1_EditingControlShowing()Sub datagridview1_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles datagridview1.EditingControlShowing
EditingControl = CType(e.Control, DataGridViewTextBoxEditingControl)
AddHandler EditingControl.KeyPress, AddressOf editingcontrol_Keypress
End Sub
Public Sub editingcontrol_Keypress()Sub editingcontrol_Keypress(ByVal sender As System.Object, ByVal e As KeyPressEventArgs)
‘写上处理语句
End Sub
Private Sub datagridview1_CellEndEdit()Sub datagridview1_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles datagridview1.CellEndEdit
RemoveHandler EditingControl.KeyPress, AddressOf editingcontrol_Keypress
End Sub