.NET Windows Forms in a Nutshell

You should apply this attribute to a class with a custom designer to indicate the nature of that designer. The design-time environment is entitled to refuse to use your designer if you do not supply this attribute.

The Category should be chosen from one of the standard options ( Component , Form , or Generic ) if you wish to integrate with the VS.NET designers. You could extend this with your own custom categories if you are providing your own design-time host.

public sealed class DesignerCategoryAttribute : Attribute { // Public Constructors public DesignerCategoryAttribute (); public DesignerCategoryAttribute (string category ); // Public Static Fields public static readonly DesignerCategoryAttribute Component ; // =System.ComponentModel.DesignerCategoryAttribute public static readonly DesignerCategoryAttribute Default ; // =System.ComponentModel.DesignerCategoryAttribute public static readonly DesignerCategoryAttribute Form ; // =System.ComponentModel.DesignerCategoryAttribute public static readonly DesignerCategoryAttribute Generic ; // =System.ComponentModel.DesignerCategoryAttribute // Public Instance Properties public string Category {get; } public override object TypeId {get; } // overrides Attribute // Public Instance Methods public override bool Equals (object obj ); // overrides Attribute public override int GetHashCode (); // overrides Attribute public override bool IsDefaultAttribute (); // overrides Attribute }

Hierarchy

System.Object System.Attribute DesignerCategoryAttribute

Valid On

Class