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ModuleBuilder.DefineGlobalMethod Method (String, MethodAttributes, Type, Type[])

Defines a global method with the specified name, attributes, return type, and parameter types.

Namespace:  System.Reflection.Emit
Assembly:  mscorlib (in mscorlib.dll)

public MethodBuilder DefineGlobalMethod(
	string name,
	MethodAttributes attributes,
	Type returnType,
	Type[] parameterTypes


Type: System.String

The name of the method. name cannot contain embedded nulls.

Type: System.Reflection.MethodAttributes

The attributes of the method. attributes must include Static.

Type: System.Type

The return type of the method.

Type: System.Type[]

The types of the method's parameters.

Return Value

Type: System.Reflection.Emit.MethodBuilder
The defined global method.


The method is not static. That is, attributes does not include Static.


The length of name is zero


An element in the Type array is null.


name is null.


CreateGlobalFunctions has been previously called.

The global method that this method defines is not usable until you call CreateGlobalFunctions.


Starting with the .NET Framework 2.0 Service Pack 1, this member no longer requires ReflectionPermission with the ReflectionPermissionFlag.ReflectionEmit flag. (See Security Issues in Reflection Emit.) To use this functionality, your application should target the .NET Framework 3.5 or later.

The following example illustrates the use of DefineGlobalMethod to create a type-independent method tied to the current ModuleBuilder. After building the global method, CreateGlobalFunctions must be called in order to complete it.

AppDomain currentDomain;
AssemblyName myAssemblyName;
MethodBuilder myMethodBuilder=null;
ILGenerator myILGenerator;

// Get the current application domain for the current thread.
currentDomain = AppDomain.CurrentDomain;
myAssemblyName = new AssemblyName();
myAssemblyName.Name = "TempAssembly";

// Define a dynamic assembly in the 'currentDomain'.
myAssemblyBuilder = 
               (myAssemblyName, AssemblyBuilderAccess.RunAndSave);
// Define a dynamic module in "TempAssembly" assembly.
myModuleBuilder = myAssemblyBuilder.DefineDynamicModule("TempModule");

// Define a global method in the 'TempModule' module.
myMethodBuilder = myModuleBuilder.DefineGlobalMethod
myILGenerator = myMethodBuilder.GetILGenerator();
myILGenerator.EmitWriteLine("Hello World from global method.");
// Fix up the 'TempModule' module .

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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