Attribute.GetCustomAttribute Method (Assembly, Type)
Retrieves a custom attribute applied to a specified assembly. Parameters specify the assembly and the type of the custom attribute to search for.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- element
-
Type:
System.Reflection.Assembly
An object derived from the Assembly class that describes a reusable collection of modules.
- attributeType
-
Type:
System.Type
The type, or a base type, of the custom attribute to search for.
Return Value
Type: System.AttributeA reference to the single custom attribute of type attributeType that is applied to element, or null if there is no such attribute.
| Exception | Condition |
|---|---|
| ArgumentNullException | element or attributeType is null. |
| ArgumentException | attributeType is not derived from Attribute. |
| AmbiguousMatchException | More than one of the requested attributes was found. |
Use the GetCustomAttributes method if you expect more than one value to be returned, or AmbiguousMatchException will be thrown.
Note |
|---|
Starting with the .NET Framework version 2.0, this method returns security attributes if the attributes are stored in the new metadata format. Assemblies compiled with version 2.0 or later use the new format. Dynamic assemblies and assemblies compiled with earlier versions of the .NET Framework use the old XML format. See Emitting Declarative Security Attributes. |
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
