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DescriptionAttribute Class

Specifies a description for a property or event.

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)

[AttributeUsageAttribute(AttributeTargets.All)]
public class DescriptionAttribute : Attribute

The DescriptionAttribute type exposes the following members.

  NameDescription
Public methodDescriptionAttribute()Initializes a new instance of the DescriptionAttribute class with no parameters.
Public methodDescriptionAttribute(String)Initializes a new instance of the DescriptionAttribute class with a description.
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  NameDescription
Public propertyDescriptionGets the description stored in this attribute.
Protected propertyDescriptionValueGets or sets the string stored as the description.
Public propertyTypeIdWhen implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
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  NameDescription
Public methodEqualsReturns whether the value of the given object is equal to the current DescriptionAttribute. (Overrides Attribute.Equals(Object).)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Overrides Attribute.GetHashCode().)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodIsDefaultAttributeReturns a value indicating whether this is the default DescriptionAttribute instance. (Overrides Attribute.IsDefaultAttribute().)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldStatic memberDefaultSpecifies the default value for the DescriptionAttribute, which is an empty string (""). This static field is read-only.
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  NameDescription
Explicit interface implemetationPrivate method_Attribute.GetIDsOfNamesMaps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoRetrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.GetTypeInfoCountRetrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetationPrivate method_Attribute.InvokeProvides access to properties and methods exposed by an object. (Inherited from Attribute.)
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The following example creates the MyImage property. The property has two attributes, a DescriptionAttribute and a CategoryAttribute.

[Description("The image associated with the control"),Category("Appearance")] 
 public Image MyImage {
    get {
       // Insert code here. 
       return image1;
    }
    set {
       // Insert code here.
    }
 }

The next example gets the description of MyImage. First the code gets a PropertyDescriptorCollection with all the properties for the object. Next it indexes into the PropertyDescriptorCollection to get MyImage. Then it returns the attributes for this property and saves them in the attributes variable.

The example then prints the description by retrieving DescriptionAttribute from the AttributeCollection, and writing it to the console screen.

// Gets the attributes for the property.
 AttributeCollection attributes = 
    TypeDescriptor.GetProperties(this)["MyImage"].Attributes;

 /* Prints the description by retrieving the DescriptionAttribute 
  * from the AttributeCollection. */
 DescriptionAttribute myAttribute = 
    (DescriptionAttribute)attributes[typeof(DescriptionAttribute)];
 Console.WriteLine(myAttribute.Description);

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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