Assembly dynamic loading assembly:

There are two situations:

1. The assembly that needs to be loaded has been referenced in the program, you can directly search from the current program domain:

Assembly assembly = AppDomain.CurrentDomain.GetAssemblies().FirstOrDefault(x => x.GetName().Name.Contains("theAssemblyName"));

2. If the assembly to be loaded is not loaded, use the assembly name to load:

Method one, some necessary information of the specific assembly is required, as follows:

Assembly assembly = Assembly.Load(@"theAssemblyName, Version=55.0.0.0, Culture=neutral, PublicKeyToken=ef0f902af9dee505");

Description: theAssemblyName: the name of the assembly, Version: the version of the assembly, Culture: generally default to neutral, PublicKeyToken: the unique identification ID of the assembly, no; the above information can be in the AssemblyInfo.cs file in the assembly project Obtain, as shown below:

Method two, load through the assembly file path, only load the assembly file, and not load other assemblies that the assembly depends on, as follows:

Assembly assembly = Assembly.LoadFile (specific path + "DynamicReferenceDLL.dll")

Method three, load through the assembly file path, and load the assembly that this assembly depends on at the same time, as follows:

Assembly assembly = Assembly.LoadFrom (specific path + "DynamicReferenceDLL.dll")

Use reflection to create an instance:

  //Get the specified class type in the assembly, the parameter is: namespace. Type name
 var type = assembly.GetType("DynamicReferenceDLL.MyMath");

   //Create an instance, method one
 //var obj = Activator.CreateInstance(type); 

   //Create an instance, method two, the parameters are: namespace. type name    
 var obj = assembly.CreateInstance("DynamicReferenceDLL.MyMath");

   //Get the method in the instance
 var method = type.GetMethod("Sum");

   //Call the instance method
 object result=method.Invoke(obj, new object[] { 1, 2 });

 Console.WriteLine(result);

How to get the file of the assemblyPublicKeyToken,Culture,Version：

Assembly assembly = Assembly.LoadFile(@"C:\Program Files\ReferencedAssemblies\theAssemblyName.dll");
string name = assembly.FullName;