.net – Createinstance() – 我这样做了吗？

我正在尝试用.NET组装一个插件系统,我不确定我是否正确地进行了操作.该系统的基础是一个特定的目录({apppath} / Plugins /)将有一堆预编译的DLL,我想通过反射来查看每个目录,并且对于每个可用的类,如果它继承了特定的基类(这是在另一个DLL中定义的,但我将在稍后介绍),然后创建它的实例并在所述实例中调用特定的函数.

Public Sub ScanPluginsInDirectory(ByVal Directory As String)

    Dim Plugins As New IO.DirectoryInfo(Directory)
    Dim Files As IO.FileInfo() = Plugins.GetFiles("*.dll")
    Dim CryptType As Type = GetType(CryptPluginBase)
    Dim PluginsData as List(Of LoadedPluginsInfo)

    For Each DllFile As IO.FileInfo In Files
        Try
            Dim thisAsm As Assembly = Assembly.LoadFrom(DllFile.FullName)
            Dim ClassDefs = thisAsm.GetTypes().Where(Function(type) CryptType.IsAssignableFrom(type))

            For Each ClassDef As Type In ClassDefs
                Dim A As Object
                A = ClassDef.Assembly.CreateInstance(ClassDef.Name)
                PluginsData.Add(New LoadedPluginsInfo(A.Plugin(),False))
            Next
        Catch ex As Exception
            Continue For
        End Try
    Next
End Sub

我遇到的具体问题是,我不确定这是否是正确的方法.如果可以假设A.Plugin()实际存在并且此处引用的任何结构和类都没有错误,那么我正在尝试的方法是否正常工作？如果有人需要更多代码才能提供帮助,我可以发布.

For Each def As Type in ClassDefs
  Dim inst = Activator.CreateInstance(def)
  PluginsData.Add(new LoadedPluginsInfo(inst.Plugin(),False))
Next