CustomAttributeExtensions.IsDefined Method

Reference

Definition

Namespace:: System.Reflection

Assembly:: System.Reflection.Extensions.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Indicates whether custom attributes are applied to an element.

Overloads

IsDefined(MemberInfo, Type, Boolean)	Indicates whether custom attributes of a specified type are applied to a specified member, and, optionally, applied to its ancestors.
IsDefined(Assembly, Type)	Indicates whether custom attributes of a specified type are applied to a specified assembly.
IsDefined(MemberInfo, Type)	Indicates whether custom attributes of a specified type are applied to a specified member.
IsDefined(Module, Type)	Indicates whether custom attributes of a specified type are applied to a specified module.
IsDefined(ParameterInfo, Type)	Indicates whether custom attributes of a specified type are applied to a specified parameter.
IsDefined(ParameterInfo, Type, Boolean)	Indicates whether custom attributes of a specified type are applied to a specified parameter, and, optionally, applied to its ancestors.

IsDefined(MemberInfo, Type, Boolean)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified member, and, optionally, applied to its ancestors.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::MemberInfo ^ element, Type ^ attributeType, bool inherit);

public static bool IsDefined (this System.Reflection.MemberInfo element, Type attributeType, bool inherit);

static member IsDefined : System.Reflection.MemberInfo * Type * bool -> bool

<Extension()>
Public Function IsDefined (element As MemberInfo, attributeType As Type, inherit As Boolean) As Boolean

Parameters

element: MemberInfo

The member to inspect.

attributeType: Type

The type of the attribute to search for.

inherit: Boolean

true to inspect the ancestors of element; otherwise, false.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

NotSupportedException

element is not a constructor, method, property, event, type, or field.

Applies to

IsDefined(Assembly, Type)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified assembly.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::Assembly ^ element, Type ^ attributeType);

public static bool IsDefined (this System.Reflection.Assembly element, Type attributeType);

static member IsDefined : System.Reflection.Assembly * Type -> bool

<Extension()>
Public Function IsDefined (element As Assembly, attributeType As Type) As Boolean

Parameters

element: Assembly

The assembly to inspect.

attributeType: Type

The type of the attribute to search for.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

Applies to

IsDefined(MemberInfo, Type)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified member.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::MemberInfo ^ element, Type ^ attributeType);

public static bool IsDefined (this System.Reflection.MemberInfo element, Type attributeType);

static member IsDefined : System.Reflection.MemberInfo * Type -> bool

<Extension()>
Public Function IsDefined (element As MemberInfo, attributeType As Type) As Boolean

Parameters

element: MemberInfo

The member to inspect.

attributeType: Type

The type of attribute to search for.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

NotSupportedException

element is not a constructor, method, property, event, type, or field.

Applies to

IsDefined(Module, Type)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified module.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::Module ^ element, Type ^ attributeType);

public static bool IsDefined (this System.Reflection.Module element, Type attributeType);

static member IsDefined : System.Reflection.Module * Type -> bool

<Extension()>
Public Function IsDefined (element As Module, attributeType As Type) As Boolean

Parameters

element: Module

The module to inspect.

attributeType: Type

The type of attribute to search for.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

Applies to

IsDefined(ParameterInfo, Type)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified parameter.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::ParameterInfo ^ element, Type ^ attributeType);

public static bool IsDefined (this System.Reflection.ParameterInfo element, Type attributeType);

static member IsDefined : System.Reflection.ParameterInfo * Type -> bool

<Extension()>
Public Function IsDefined (element As ParameterInfo, attributeType As Type) As Boolean

Parameters

element: ParameterInfo

The parameter to inspect.

attributeType: Type

The type of attribute to search for.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

Applies to

IsDefined(ParameterInfo, Type, Boolean)

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Source:: CustomAttributeExtensions.cs

Indicates whether custom attributes of a specified type are applied to a specified parameter, and, optionally, applied to its ancestors.

public:
[System::Runtime::CompilerServices::Extension]
 static bool IsDefined(System::Reflection::ParameterInfo ^ element, Type ^ attributeType, bool inherit);

public static bool IsDefined (this System.Reflection.ParameterInfo element, Type attributeType, bool inherit);

static member IsDefined : System.Reflection.ParameterInfo * Type * bool -> bool

<Extension()>
Public Function IsDefined (element As ParameterInfo, attributeType As Type, inherit As Boolean) As Boolean

Parameters

element: ParameterInfo

The parameter to inspect.

attributeType: Type

The type of attribute to search for.

inherit: Boolean

true to inspect the ancestors of element; otherwise, false.

Returns

Boolean

true if an attribute of the specified type is applied to element; otherwise, false.

Exceptions

ArgumentNullException

element or attributeType is null.

ArgumentException

attributeType is not derived from Attribute.

Applies to

Share via

CustomAttributeExtensions.IsDefined Method

Definition

Overloads

IsDefined(MemberInfo, Type, Boolean)

Parameters

Returns

Exceptions

Applies to

IsDefined(Assembly, Type)

Parameters

Returns

Exceptions

Applies to

IsDefined(MemberInfo, Type)

Parameters

Returns

Exceptions

Applies to

IsDefined(Module, Type)

Parameters

Returns

Exceptions

Applies to

IsDefined(ParameterInfo, Type)

Parameters

Returns

Exceptions

Applies to

IsDefined(ParameterInfo, Type, Boolean)

Parameters

Returns

Exceptions

Applies to

Additional resources