本文整理匯總了VB.NET中System.ObsoleteAttribute.Message屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET ObsoleteAttribute.Message屬性的具體用法？VB.NET ObsoleteAttribute.Message怎麽用？VB.NET ObsoleteAttribute.Message使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.ObsoleteAttribute的用法示例。
在下文中一共展示了ObsoleteAttribute.Message屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Example
' 導入命名空間
Imports System.Reflection
Public Module Example
' Mark OldProperty As Obsolete.
<ObsoleteAttribute("This property is obsolete. Use NewProperty instead.", False)>
Public ReadOnly Property OldProperty As String
Get
Return "The old property value."
End Get
End Property
Public ReadOnly Property NewProperty As String
Get
Return "The new property value."
End Get
End Property
' Mark OldMethod As Obsolete.
<ObsoleteAttribute("This method is obsolete. Call NewMethod instead.", True)>
Public Function OldMethod() As String
Return "You have called OldMethod."
End Function
Public Function NewMethod() As String
Return "You have called NewMethod."
End Function
Public Sub Main()
' Get all public members of this type.
Dim members() As MemberInfo = GetType(Example).GetMembers()
' Count total obsolete members.
Dim n As Integer = 0
' Try to get the ObsoleteAttribute for each public member.
Console.WriteLine("Obsolete members in the Example class:")
Console.WriteLine()
For Each member In members
Dim attribs() As ObsoleteAttribute = CType(member.GetCustomAttributes(GetType(ObsoleteAttribute),
False), ObsoleteAttribute())
If attribs.Length > 0 Then
Dim attrib As ObsoleteAttribute = attribs(0)
Console.WriteLine("Member Name: {0}.{1}", member.DeclaringType.FullName, member.Name)
Console.WriteLine(" Message: {0}", attrib.Message)
Console.WriteLine(" Warning/Error: {0}", if(attrib.IsError, "Error", "Warning"))
n += 1
End If
Next
If n = 0 Then
Console.WriteLine("The Example type has no obsolete attributes.")
End If
End Sub
End Module輸出：
Obsolete members in the Example class: Member Name: Example.OldMethod Message: This method is obsolete. Call NewMethod instead. Warning/Error: Error Member Name: Example.OldProperty Message: This property is obsolete. Use NewProperty instead. Warning/Error: Warning