[教学]That assembly does not allow partially trusted callers

For Web Service Solution / Web Service的问题

1. System.Security.SecurityException: That assembly does not allow partially trusted callers.，
   

复制代码

How solve it? / 如何解决呢？

1. Go AssemblyInfo.cs Add the Content Below / AssemblyInfo.cs文件中加如下内容

C#
using System.Security;
[assembly: AllowPartiallyTrustedCallers()]

Vb.net
Imports System.Security
<Assembly: AllowPartiallyTrustedCallers()>