解决方法
您可以在UserControl中公开要从Page设置的属性ValidationGroup.此值应存储在ViewState中,以便UserControl的每个实例都将获得不同的ValidationGroup(如果您的页面分配不同).
例如：
Public Property ValidationGroup() As String
Get
Return CStr(ViewState("ValidationGroup"))
End Get
Set(ByVal value As String)
SetValidationGroupOnChildren(Me,value)
ViewState("ValidationGroup") = value
End Set
End Property
Private Sub SetValidationGroupOnChildren(ByVal parent As Control,ByVal validationGroup As String)
For Each ctrl As Control In parent.Controls
If TypeOf ctrl Is BaseValidator Then
CType(ctrl,BaseValidator).ValidationGroup = validationGroup
ElseIf TypeOf ctrl Is IButtonControl Then
CType(ctrl,IButtonControl).ValidationGroup = validationGroup
ElseIf ctrl.HasControls() And ctrl.Visible = True Then
SetValidationGroupOnChildren(ctrl,validationGroup)
End If
Next
End Sub
> http://www.craigwardman.com/blog/index.php/2009/05/setting-a-validation-group-on-a-user-control/
> http://justgeeks.blogspot.com/2009/09/be-careful-using-hard-coded.html
如果在UserControl中需要不同的ValidationGroup,则上述递归函数将不起作用,然后您可以从代码隐藏中手动分配它.例如,将UserControl的ID(可能已足够)或ClientID放在相应控件的ValidationGroup属性之前.你可以调用这个函数的好地方是PreRender.
