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MethodBase.GetGenericArguments Method

Returns an array of Type objects that represent the type arguments of a generic method or the type parameters of a generic method definition.

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

[ComVisibleAttribute(true)]
public virtual Type[] GetGenericArguments()

Return Value

Type: System.Type[]
An array of Type objects that represent the type arguments of a generic method or the type parameters of a generic method definition. Returns an empty array if the current method is not a generic method.

ExceptionCondition
NotSupportedException

The current object is a ConstructorInfo. Generic constructors are not supported in the .NET Framework version 2.0. This exception is the default behavior if this method is not overridden in a derived class.

The elements of the returned array are in the order in which they appear in the list of type parameters for the generic method.

  • If the current method is a closed constructed method (that is, the ContainsGenericParameters property returns false), the array returned by the GetGenericArguments method contains the types that have been assigned to the generic type parameters of the generic method definition.

  • If the current method is a generic method definition, the array contains the type parameters.

  • If the current method is an open constructed method (that is, the ContainsGenericParameters property returns true) in which specific types have been assigned to some type parameters and type parameters of enclosing generic types have been assigned to other type parameters, the array contains both types and type parameters. Use the IsGenericParameter property to tell them apart. For a demonstration of this scenario, see the code example provided for the ContainsGenericParameters property.

Generic constructors are not supported in the .NET Framework version 2.0. This property throws NotSupportedException if not overridden in a derived class, so an exception is thrown if the current instance is of type ConstructorInfo.

For a list of the invariant conditions for terms specific to generic methods, see the MethodInfo.IsGenericMethod property. For a list of the invariant conditions for other terms used in generic reflection, see the Type.IsGenericType property.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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