我有一份申请,使用通过接口I管理的原始产品,然后动态地装上原始产品类别,并将它们与它们一起工作。
我有以下编码线,假设IPlugin是我的接口。
IPlugin _plugin = (IPlugin)Activator.CreateInstance(oInfo.Assembly, oInfo.FullyQualifiedName)
这应当非常简单,可以提出理由并将其交给接口。 我知道,大会和完全合格的名称价值是正确的,但我正在获得以下例外。
Exception= System.InvalidCastException: Unable to cast object of type ‘System.Runtime.Remoting.ObjectHandle’ to type ‘MyNamespace.Components.Integration.IPlugin’. at MyNamespace.Components.Integration.PluginProxy..ctor(Int32 instanceId)
任何可导致这种情况的想法?
例外情况表明,你重读了
询问如下:
ObjectHandle marshaled_plugin = (ObjectHandle)Activator.CreateInstance(oInfo.Assembly, Info.FullyQualifiedName);
IPlugin plugin = (IPlugin)marshaled_plugin.Unwrap();
如你在文件上所示,这一超载返回ObjectHandle>/bject<<>>>>> 标注
The ObjectHandle cannot be casted directly to your interface.
Instead, you need to call the Unwrap method, like this:
IPlugin _plugin = (IPlugin)Activator.CreateInstance(...).Unwrap();
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