Question

我有两个不同的类，并希望在Notify函数中使用class作为参数。 ====代码======================
＆＃39;邮件类通知参数

Friend Class MailClass   
         Friend NotifyHost As String   
         Friend NotifyPort As String    
End Class

＆＃39; FTP类通知参数

  Friend Class FtpClass       
    Friend NotifyHost As String     
    Friend NotifyPort As String        
    End Class     


Friend Class ProcessNotification      
    'Notify on FTP Specified Email            
     Private Sub btnMailNotiFy_Click(ByVal sender As System.Object, ByVal e As     System.EventArgs)       
    Notify (ByRef mailAccount as MailClass)      
    End Sub 

    'Notify on FTP Specified Email
    Private Sub btnFTPNotiFy_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) 
    Notify (ByRef ftpAccount as FtpClass)
    End Sub

    ' Generic method to use for multiple class
    Private Sub Notify(NO Idea ??)
    ' ## Please Help ### 
    End Sub
End Class

如何制作Notify方法Generic？

Answer 1

如果内存服务，generics自2.0起就成为.Net的一部分你在寻找这样的东西吗？

Private Sub Notify(Of T as Class)(ByVal agr as T)
' do stuff
End Sub

<强>更新

按照我们在注释中的讨论，您需要创建一个接口，该接口将指定您要在泛型方法中使用的所有属性和方法，然后将其用作通用约束：

Friend Interface IMyInrteface
    NotifyHost As String   
    NotifyPort As String  
End Interface

Private Sub Notify(Of T as IMyInrteface)(ByRef agr as T)
' do stuff
End Sub

当然，您发送给此方法的所有类都必须实现接口：

Friend Class MailClass   
    Implements IMyInrteface
    Friend NotifyHost As String   
    Friend NotifyPort As String    
End Class 

Friend Class FtpClass       
    Implements IMyInrteface
    Friend NotifyHost As String     
    Friend NotifyPort As String        
End Class

将类作为参数的通用方法

1 个答案: