分配用户控件获取错误的属性值

Question

您好我的网站有usercontrol，我可以加载控件。但是，如果我分配用户控件的属性值，我得到错误“类型”WebUserControl）没有定义。有人能告诉我如何解决它。提前谢谢。

有使用我的Usercontrol的代码

Partial Class Test
    Inherits System.Web.UI.Page

  Protected Sub form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles form1.Load

    Dim ctrl As Control
    ctrl = Page.LoadControl("Management/Profile/WebUserControl.ascx")
    ctrl.ID = "ctrl_1"
    CType(ctrl, WebUserControl).Level = 6 //this line cause error
    PlaceHolder1.Controls.Add(ctrl)

  End Sub

End Class

这是我的WebUserControl

Partial Class  Management_Profile_WebUserControl
Inherits System.Web.UI.UserControl
Private m_Level As Integer

Public Property Level() As Integer
    Get
        Return m_Level
    End Get
    Set(ByVal Value As Integer)
        m_Level = Value
    End Set
End Property



Protected Sub Management_Profile_WebUserControl_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    TextBox1.Text = m_Level
End Sub


End Class