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SubMenuStyleCollectionEditor Class

Provides a component editor for the SubMenuStyleCollection object in the associated Menu control.

System.Object
  System.Drawing.Design.UITypeEditor
    System.ComponentModel.Design.CollectionEditor
      System.Web.UI.Design.WebControls.SubMenuStyleCollectionEditor

Namespace:  System.Web.UI.Design.WebControls
Assembly:  System.Design (in System.Design.dll)

[SecurityPermissionAttribute(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public class SubMenuStyleCollectionEditor : CollectionEditor

The SubMenuStyleCollectionEditor type exposes the following members.

  NameDescription
Public methodSubMenuStyleCollectionEditorInitializes a new instance of the SubMenuStyleCollectionEditor class.
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  NameDescription
Protected propertyCollectionItemTypeGets the data type of each item in the collection. (Inherited from CollectionEditor.)
Protected propertyCollectionTypeGets the data type of the collection object. (Inherited from CollectionEditor.)
Protected propertyContextGets a type descriptor that indicates the current context. (Inherited from CollectionEditor.)
Protected propertyHelpTopicGets the Help keyword to display the Help topic or topic list for when the editor's dialog box Help button or the F1 key is pressed. (Inherited from CollectionEditor.)
Public propertyIsDropDownResizableGets a value indicating whether drop-down editors should be resizable by the user. (Inherited from UITypeEditor.)
Protected propertyNewItemTypesGets the available types of items that can be created for this collection. (Inherited from CollectionEditor.)
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  NameDescription
Protected methodCancelChangesCancels changes to the collection. (Inherited from CollectionEditor.)
Protected methodCanRemoveInstanceIndicates whether original members of the collection can be removed. (Inherited from CollectionEditor.)
Protected methodCanSelectMultipleInstancesGets a value indicating whether multiple SubMenuStyle elements can be selected in the editor at one time. (Overrides CollectionEditor.CanSelectMultipleInstances().)
Protected methodCreateCollectionFormCreates a new form to display and edit the current SubMenuStyleCollection collection. (Overrides CollectionEditor.CreateCollectionForm().)
Protected methodCreateCollectionItemTypeGets the data type that this collection contains. (Inherited from CollectionEditor.)
Protected methodCreateInstanceCreates a new instance of the specified collection item type. (Overrides CollectionEditor.CreateInstance(Type).)
Protected methodCreateNewItemTypesGets the data types that this collection editor can create. (Overrides CollectionEditor.CreateNewItemTypes().)
Protected methodDestroyInstanceDestroys the specified instance of the object. (Inherited from CollectionEditor.)
Public methodEditValue(IServiceProvider, Object)Edits the value of the specified object using the editor style indicated by the GetEditStyle method. (Inherited from UITypeEditor.)
Public methodEditValue(ITypeDescriptorContext, IServiceProvider, Object)Edits the value of the specified object using the specified service provider and context. (Inherited from CollectionEditor.)
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from 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.)
Protected methodGetDisplayTextRetrieves the display text for the given list item. (Inherited from CollectionEditor.)
Public methodGetEditStyle()Gets the editor style used by the EditValue method. (Inherited from UITypeEditor.)
Public methodGetEditStyle(ITypeDescriptorContext)Gets the edit style used by the EditValue method. (Inherited from CollectionEditor.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Protected methodGetItemsGets an array of objects containing the specified collection. (Inherited from CollectionEditor.)
Protected methodGetObjectsFromInstanceReturns a list containing the given object (Inherited from CollectionEditor.)
Public methodGetPaintValueSupported()Indicates whether this editor supports painting a representation of an object's value. (Inherited from UITypeEditor.)
Public methodGetPaintValueSupported(ITypeDescriptorContext)Indicates whether the specified context supports painting a representation of an object's value within the specified context. (Inherited from UITypeEditor.)
Protected methodGetServiceGets the requested service, if it is available. (Inherited from CollectionEditor.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodPaintValue(PaintValueEventArgs)Paints a representation of the value of an object using the specified PaintValueEventArgs. (Inherited from UITypeEditor.)
Public methodPaintValue(Object, Graphics, Rectangle)Paints a representation of the value of the specified object to the specified canvas. (Inherited from UITypeEditor.)
Protected methodSetItemsSets the specified array as the items of the collection. (Inherited from CollectionEditor.)
Protected methodShowHelpDisplays the default Help topic for the collection editor. (Inherited from CollectionEditor.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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The SubMenuStyleCollectionEditor class provides a user interface for editing the SubMenuStyle elements of the SubMenuStyleCollection object in the associated Menu control at design time, under the control of the MenuDesigner object.

There is a SubMenuStyleCollection associated with the LevelSubMenuStyles property of the Menu control. The SubMenuStyleCollection object is used to apply styles to static submenu items that depend on their level (nesting depth) in the menu structure.

The SubMenuStyleCollectionEditor is invoked, for example, by selecting the ellipsis button () on the LevelSubMenuStyles row in the Properties grid of the visual designer.

The CanSelectMultipleInstances method always returns false to indicate that only one object can be selected at a time in the editor. The CreateCollectionForm method creates a new form to display and edit the SubMenuStyleCollection.

The CreateInstance method creates a new instance of the specified collection item type. The CreateNewItemTypes method returns an array of types that the editor can create.

The following code example shows how to use the EditorAttribute attribute to associate the SubMenuStyleCollectionEditor and UITypeEditor (the collection editor base class) classes with a property in a custom control, derived from the WebControl class, that gets and sets a SubMenuStyleCollection collection.

private SubMenuStyleCollection subMenuStyles;

// Associate the SubMenuStyleCollectionEditor with the  
// LevelSubMenuStyles. 
[Editor(typeof(System.Web.UI.Design.WebControls.
    SubMenuStyleCollectionEditor),
    typeof(UITypeEditor))]
public SubMenuStyleCollection LevelSubMenuStyles
{
    get { return subMenuStyles; }
    set { subMenuStyles = value; }
} // LevelSubMenuStyles

.NET Framework

Supported in: 4.5.3, 4, 3.5, 3.0, 2.0

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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