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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.

  Name Description
Public method DescriptionAttribute() Initializes a new instance of the DescriptionAttribute class with no parameters.
Public method DescriptionAttribute(String) Initializes a new instance of the DescriptionAttribute class with a description.
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  Name Description
Public property Description Gets the description stored in this attribute.
Protected property DescriptionValue Gets or sets the string stored as the description.
Public property TypeId When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)
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  Name Description
Public method Equals Returns whether the value of the given object is equal to the current DescriptionAttribute. (Overrides Attribute.Equals(Object).)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Returns the hash code for this instance. (Overrides Attribute.GetHashCode().)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method IsDefaultAttribute Returns a value indicating whether this is the default DescriptionAttribute instance. (Overrides Attribute.IsDefaultAttribute().)
Public method Match When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
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  Name Description
Public field Static member Default Specifies the default value for the DescriptionAttribute, which is an empty string (""). This static field is read-only.
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  Name Description
Explicit interface implemetation Private method _Attribute.GetIDsOfNames Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)
Explicit interface implemetation Private method _Attribute.GetTypeInfo Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)
Explicit interface implemetation Private method _Attribute.GetTypeInfoCount Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)
Explicit interface implemetation Private method _Attribute.Invoke Provides access to properties and methods exposed by an object. (Inherited from Attribute.)
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A visual designer can display the specified description when referencing the component member, such as in a Properties window. Call Description to access the value of this attribute.

For more information, see Extending Metadata Using Attributes.

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, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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Sample of Description :)
[DefaultValue("#FFFEB8"), Description("Gösterilecek kontrolun arkaplan rengini belirler. Başlangıç değeri limon sarısıdır.")]       [TypeConverterAttribute(typeof(WebColorConverter))]        public System.Drawing.Color ArkaRenk { get; set; } This is Turkish code  but in my code in first line  my aim is to describe which color my Web Control Backcolor so i added to attribute  my property above  [TypeConverterAttribute(typeof(WebColorConverter))]  it enabled to my prop select easly. I can also add  this attribute to describe what i want from user or devoloper and what he/she should do  ,if they don't select no color i give the DefaultValue. $0 [DefaultValue("#FFFEB8"), Description("Gösterilecek kontrolun arkaplan rengini belirler. Başlangıç değeri limon sarısıdır.")] Thanks For ..Rta