c＃通过反射获得localvaraile

Question

我研究并测试 System.Reflection。

使用 property 调用 GetValue() 时会出现错误。

我认为它将把 property 从 PropertyInfo 转换为 string。 但是，这里有些不对劲。

     var asmArray = AppDomain.CurrentDomain.GetAssemblies();

     //to find the specified assembly
     var asm = asmArray.FirstOrDefault(asm => string.Equals(asm.GetName().Name, "TestAspNetCoret00")); 

     //to find the specified class
     var type = asm.GetTypes().FirstOrDefault(type => string.Equals(type.Name, "StudentRespository"));

     //to find the specified method
     var methodInfo = type.GetMethods().FirstOrDefault(mI => string.Equals(mI.Name, "GetById")); 

     //to find the specified localVariable
     var localVariableInfo = methodInfo.GetMethodBody().LocalVariables.FirstOrDefault(lI => string.Equals(lI.LocalType.GetTypeInfo().Name, "SqlCommand")); 

     //to find the specified property of the localVariable
     var property = localVariableInfo.LocalType.GetTypeInfo().DeclaredProperties.FirstOrDefault(pro => string.Equals(pro.Name, "CommandText")); 

     if (property != null)
     {
     Console.WriteLine((string)property.GetValue(localVariableInfo.LocalType)); 
     // error! TargetException: Object does not match target type.
     }