这个泛型要怎么用呢？

Question

我自定义了一个泛型，希望是能动态引用类型。   其中: Payment 和 Shipment 都是 Entity class

下面的代码，报错: SL4.ReportManage(Of Payment)”的值无法转换为“SL4.ReportManage(Of Object)”。  

求助，要怎么样做才能做到动态引用类型呢？

Public Class ReportManage(Of T)
    Public Property DataSource As IEnumerable(Of T)
End Class

Public Class Main
    Dim RM As ReportManage(Of Object)
    Public Sub Init(ByVal Name As String)
        RM = New ReportManage(Of Object)
        Select Case Name
            Case "Payment"
                RM = New ReportManage(Of Payment)
            Case "Shipment"
                RM = New ReportManage(Of Shipment)
        End Select
    End Sub
End Class

 

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不吝赐教