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+---
+title: Attributes in Controls
+ms.date: "03/30/2017"
+helpviewer_keywords: 
+  - "attributes [Windows Forms]"
+  - "attributes [Windows Forms], data binding properties"
+  - "attributes [Windows Forms], control properties"
+  - "attributes [Windows Forms], classes"
+ms.assetid: 2c5640e9-6c6c-49d7-a5e4-a768f6be7853
+---
+# Attributes in Windows Forms Controls
+The .NET Framework provides a variety of attributes you can apply to the members of your custom controls and components. Some of these attributes affect the run-time behavior of a class, and others affect the design-time behavior.  
+  
+## Attributes for Control and Component Properties  
+ The following table shows the attributes you can apply to properties or other members of your custom controls and components. For an example that uses many of these attributes, see [How to: Apply Attributes in Windows Forms Controls](how-to-apply-attributes-in-windows-forms-controls.md).  
+  
+|Attribute|Description|  
+|---------------|-----------------|  
+|<xref:System.ComponentModel.AmbientValueAttribute>|Specifies the value to pass to a property to cause the property to get its value from another source. This is known as *ambience*.|  
+|<xref:System.ComponentModel.BrowsableAttribute>|Specifies whether a property or event should be displayed in a **Properties** window.|  
+|<xref:System.ComponentModel.CategoryAttribute>|Specifies the name of the category in which to group the property or event when displayed in a <xref:System.Windows.Forms.PropertyGrid> control set to <xref:System.Windows.Forms.PropertySort.Categorized> mode.|  
+|<xref:System.ComponentModel.DefaultValueAttribute>|Specifies the default value for a property.|  
+|<xref:System.ComponentModel.DescriptionAttribute>|Specifies a description for a property or event.|  
+|<xref:System.ComponentModel.DisplayNameAttribute>|Specifies the display name for a property, event, or `public void` method that takes no arguments.|  
+|<xref:System.ComponentModel.EditorAttribute>|Specifies the editor to use to change a property.|  
+|<xref:System.ComponentModel.EditorBrowsableAttribute>|Specifies that a property or method is viewable in an editor.|  
+|<xref:System.ComponentModel.Design.HelpKeywordAttribute>|Specifies the context keyword for a class or member.|  
+|<xref:System.ComponentModel.LocalizableAttribute>|Specifies whether a property should be localized.|  
+|<xref:System.ComponentModel.PasswordPropertyTextAttribute>|Indicates that an object's text representation is obscured by characters such as asterisks.|  
+|<xref:System.ComponentModel.ReadOnlyAttribute>|Specifies whether the property this attribute is bound to is read-only or read/write at design time.|  
+|<xref:System.ComponentModel.RefreshPropertiesAttribute>|Indicates that the property grid should refresh when the associated property value changes.|  
+|<xref:System.ComponentModel.TypeConverterAttribute>|Specifies what type to use as a converter for the object this attribute is bound to.|  
+  
+## Attributes for Data Binding Properties  
+ The following table shows the attributes you can apply to specify how your custom controls and components interact with data binding.  
+  
+|Attribute|Description|  
+|---------------|-----------------|  
+|<xref:System.ComponentModel.BindableAttribute>|Specifies whether a property is typically used for binding.|  
+|<xref:System.ComponentModel.ComplexBindingPropertiesAttribute>|Specifies the data source and data member properties for a component.|  
+|<xref:System.ComponentModel.DefaultBindingPropertyAttribute>|Specifies the default binding property for a component.|  
+|<xref:System.ComponentModel.LookupBindingPropertiesAttribute>|Specifies the data source and data member properties for a component.|  
+|<xref:System.ComponentModel.AttributeProviderAttribute>|Enables attribute redirection.|  
+  
+## Attributes for Classes  
+ The following table shows the attributes you can apply to specify the behavior of your custom controls and components at design time.  
+  
+|Attribute|Description|  
+|---------------|-----------------|  
+|<xref:System.ComponentModel.DefaultEventAttribute>|Specifies the default event for a component.|  
+|<xref:System.ComponentModel.DefaultPropertyAttribute>|Specifies the default property for a component.|  
+|<xref:System.ComponentModel.DesignerAttribute>|Specifies the class used to implement design-time services for a component.|  
+|<xref:System.ComponentModel.DesignerCategoryAttribute>|Specifies that the designer for a class belongs to a certain category.|  
+|<xref:System.ComponentModel.ToolboxItemAttribute>|Represents an attribute of a toolbox item.|  
+|<xref:System.ComponentModel.ToolboxItemFilterAttribute>|Specifies the filter string and filter type to use for a Toolbox item.|  
+  
+## See also
+
+- <xref:System.Attribute>
+- [How to: Apply Attributes in Windows Forms Controls](how-to-apply-attributes-in-windows-forms-controls.md)
+- [Extending Design-Time Support](https://docs.microsoft.com/previous-versions/visualstudio/visual-studio-2013/37899azc(v=vs.120))
+- [Developing Custom Windows Forms Controls with the .NET Framework](developing-custom-windows-forms-controls.md)