自定義控件中的組屬性

Question

在我們的IDE中，例如Visual Studio，如果我們顯示System.Windows.Forms.Button控件的屬性，則會看到一些暴露一組屬性的屬性。例如：FlatAppearance，Font，Location，Margin，等等。

我想在自定義控件中做類似的事情。

我知道後面的代碼是錯誤，但這裏是什麼我正嘗試做一個例子：

Public Class StateOfMyCustomControl 

    Public Enum EnumVisibility 
     Visible 
     NonVisible 
    End Enum 

    Public Enum EnumEventManagement 
     Automatic 
     Manual 
    End Enum 

    Private mAssociatedControl As MyCustomControl 
    Private mVisibility As EnumVisibility 
    Private mEventManagement As EnumEventManagement 

    Public Sub New(ByVal AssociatedControl As MyCustomControl) 
     mAssociatedControl = AssociatedControl 
    End Sub 

    Public Property Visibility() As EnumVisibility 
     Get 
      Return mVisibility 
     End Get 
     Set(ByVal value As EnumVisibility) 

      mVisibility = value 

      mAssociatedControl.Visible = False 
      If mVisibility = EnumVisibility.Visible Then 
       mAssociatedControl.Visible = True 
      End If 

     End Set 
    End Property 

    Public Property EventManagement() As EnumEventManagement 
     Get 
      Return mEventManagement 
     End Get 
     Set(ByVal value As EnumEventManagement) 
      mEventManagement = value 
     End Set 
    End Property 

End Class 

Public Class MyCustomControl 

    ' ... 

    Private mState As StateOfMyCustomControl 

    Public Sub New() 
     mState = New StateOfMyCustomControl(Me) 
    End Sub 

    Public Property State() As StateOfMyCustomControl 
     Get 
      Return mState 
     End Get 
     Set(ByVal value As StateOfMyCustomControl) 
      mState = value 
     End Set 
    End Property 

    ' ... 

End Class 

在我的IDE，在我的自定義控件的屬性窗口，我會喜歡看我的財產狀態，可以顯示它來設置屬性可見性和EventManagement。

非常感謝

Answer 1

你需要告訴它使用ExpandableObjectConverter（或自定義轉換器），StateOfMyCustomControl。在C＃中，這就是：但是你在VB應用屬性

[TypeConverter(typeof(ExpandableObjectConverter))] 
public class StateOfMyCustomControl {...} 

，做;-p

可能：

<TypeConverter(GetType(ExpandableObjectConverter))> _ 
Public Class StateOfMyCustomControl 
...