反射+ LINQ

我修整到上設置我的所有組合框的數據源子使用反射與LINQ：反射+ LINQ

常用的方法：

' ACAmp Panel 
cboACPanelAmp.ValueMember = "IDACAmp" 
cboACPanelAmp.DisplayMember = "Description" 
cboACPanelAmp.DataSource = m_Entities.ACAmps.OrderBy(Function(c As ACAmp) c.SortOrder).ToList

要使用子

FillCbo(cboACPanelAmp, "ACAmp") 

Private Sub FillCbo(ByVal cbo As Infragistics.Win.UltraWinEditors.UltraComboEditor, ByVal entityName As String) 

    cbo.ValueMember = "ID" & entityName 
    cbo.DisplayMember = "Description" 

    ' need to complete this line 
    cbo.DataSource = GetType(RFOPSEntities). 
        GetProperty(entityName & "s").GetGetMethod().Invoke(m_Entities, Nothing) 
    ' with this code 
    ' .OrderBy(Function(c As ACAmp) c.SortOrder).ToList 

    ' like this line 
    cbo.DataSource = m_Entities.ACAmps.OrderBy(Function(c As ACAmp) c.SortOrder).ToList 

End Sub

我找不出最後一行的最後一部分，LINQ

來源

2011-05-11 Francis

cbo.DataSource = GetType(RFOPSEntities). 
        GetProperty(entityName & "s").GetGetMethod().Invoke(m_Entities, Nothing)

在該行中，您需要告訴環境這是一種可以使用linq的類型。

所以我認爲這是一個RFOPSEntities，所以像

cbo.DataSource = DirectCast(GetType(RFOPSEntities) 
        .GetProperty(entityName & "s") 
        .GetGetMethod() 
        .Invoke(m_Entities, Nothing), RFOPSEntities)

那麼你應該能夠使用LINQ的排序依據上

cbo.DataSource = DirectCast(GetType(RFOPSEntities) 
        .GetProperty(entityName & "s") 
        .GetGetMethod() 
        .Invoke(m_Entities, Nothing), RFOPSEntities) 
        .OrderBy(Function(c As ACAmp) c.SortOrder).ToList

來源

2011-05-12 15:21:08 msarchet

cbo.DataSource = DirectCast（的GetType（RFOPSEntities）_ .GetProperty（＆的entityName 「S」）_ .GetGetMethod（）_ .Invoke（m_Entities，爲Nothing），對象集（OF ACAmp））。的OrderBy（功能（c As ACAmp）c.SortOrder）.ToList（） – Francis 2011-05-12 15:45:41

謝謝msarchet我modifiy了一點，但這行得通。

cbo.DataSource = DirectCast(GetType(RFOPSEntities) _ 
          .GetProperty(entityName & "s") _ 
          .GetGetMethod() _ 
          .Invoke(m_Entities, Nothing), ObjectSet(Of ACAmp))) 
          .OrderBy(Function(c As ACAmp)) c.SortOrder).ToList()

現在我需要做的semeting這樣的：

cbo.DataSource = DirectCast(GetType(RFOPSEntities) _ 
           .GetProperty(entityName & "s") _ 
           .GetGetMethod() _ 
           .Invoke(m_Entities, Nothing), ObjectSet(Of Type.GetType("ACAmp"))).OrderBy(Function(c As Type.GetType("ACAmp")) c.SortOrder).ToList()

的Type.GetType（「ACAmp」）不是goog但類型可以通過字符串傳遞。怎麼樣？

來源

2011-05-12 15:50:23 Francis

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