C# 0 The Complete Reference

MyClasses.exe

 were found. The 

first one, which in this case was 

MyClass

, was then used to instantiate an object and execute 

methods.

The types in 

MyClasses.exe

 are discovered using this sequence of code, which is near 

the start of 

Main( )

:

// Load the MyClasses.exe assembly.

Assembly asm = Assembly.LoadFrom("MyClasses.exe");

// Discover what types MyClasses.exe contains.

Type[] alltypes = asm.GetTypes();

foreach(Type temp in alltypes)

  Console.WriteLine("Found: " + temp.Name);

You can use such a sequence whenever you need to dynamically load and interrogate an 

assembly.

On a related point, an assembly need not be an 

exe

 file. Assemblies can also be contained 

in dynamic link library (DLL) files that use the 

dll

 extension. For example, if you were to 

compile

MyClasses.cs

 using this command line,

csc /t:library MyClasses.cs

then the output file would be 

MyClasses.dll

. One advantage to putting code into a DLL is 

that no 

Main( )

 method is required. All 

exe

 files require an entry point, such as 

Main( )

, that 

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