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DialogPage Class

Provides a standard dialog box functionality for implementing Toolbox property sheets, ToolsOptions pages, or custom UI dialog boxes, with support for the Visual Studio automation model, Windows Forms, and state persistence by using the Visual Studio settings mechanism.

Inheritance Hierarchy

Object
  MarshalByRefObject
    Component
      Microsoft.VisualStudio.Shell.DialogPage
        Microsoft.VisualStudio.Shell.UIElementDialogPage

Namespace:  Microsoft.VisualStudio.Shell
Assembly:  Microsoft.VisualStudio.Shell.12.0 (in Microsoft.VisualStudio.Shell.12.0.dll)

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class DialogPage _
    Inherits Component _
    Implements IWin32Window, IProfileManager
[ComVisibleAttribute(true)]
public class DialogPage : Component, IWin32Window, 
    IProfileManager
[ComVisibleAttribute(true)]
public ref class DialogPage : public Component, 
    IWin32Window, IProfileManager
[<ComVisibleAttribute(true)>]
type DialogPage =  
    class 
        inherit Component 
        interface IWin32Window 
        interface IProfileManager 
    end
public class DialogPage extends Component implements IWin32Window, IProfileManager

The DialogPage type exposes the following members.

Constructors

  Name Description
Public method DialogPage Initializes a new instance of DialogPage.

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Properties

  Name Description
Public property AutomationObject Gets the DTE automation model object for a given instance of a dialog page class.
Protected property CanRaiseEvents Gets a value indicating whether the component can raise an event. (Inherited from Component.)
Public property Container Gets the IContainer that contains the Component. (Inherited from Component.)
Protected property DesignMode Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.)
Protected property Events Gets the list of event handlers that are attached to this Component. (Inherited from Component.)
Protected property SettingsRegistryPath Gets or sets the sub-key under the Visual Studio version-specific root for storing settings data for a dialog page.
Public property Site Gets or sets the site of the dialog page. Overrides the implementation inherited from Component. (Overrides Component.Site.)
Protected property Window Gets the window that is used as the user interface of the dialog page.

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Methods

  Name Description
Public method CreateObjRef Security Critical. Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.)
Public method Dispose Releases all resources used by the Component. (Inherited from Component.)
Protected method Dispose(Boolean) Releases the unmanaged resources that are used by a dialog page class and optionally releases the managed resources; the parent class, Component supports unmanaged resources. (Overrides Component.Dispose(Boolean).)
Public method Equals Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected method Finalize Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.)
Public method GetHashCode Serves as the default hash function. (Inherited from Object.)
Public method GetLifetimeService Security Critical. Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected method GetService Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method InitializeLifetimeService Security Critical. Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Public method LoadSettingsFromStorage Called by Visual Studio to load the settings of a dialog page from local storage, generally the registry.
Public method LoadSettingsFromXml Called by Visual Studio to load the settings of a dialog page from the Visual Studio settings storage on disk.
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method MemberwiseClone(Boolean) Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.)
Protected method OnActivate Handles Windows Activate messages from the Visual Studio environment.
Protected method OnApply Handles Apply messages from the Visual Studio environment.
Protected method OnClosed Handles Close messages from the Visual Studio environment.
Protected method OnDeactivate Handles Deactive messages from the Visual Studio environment.
Public method ResetSettings Should be overridden to reset settings to their default values.
Public method SaveSettingsToStorage Called by Visual Studio to store the settings of a dialog page in local storage, typically the registry.
Public method SaveSettingsToXml Called by Visual Studio to store the settings of a dialog page to the Visual Studio settings storage on disk.
Public method ToString Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.)

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Events

  Name Description
Public event Disposed Occurs when the component is disposed by a call to the Dispose method. (Inherited from Component.)

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Explicit Interface Implementations

  Name Description
Explicit interface implemetationPrivate property IWin32Window.Handle Gets the handle of the window of the dialog page.

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Remarks

Notes for Implementers

Implement classes derived from DialogPage when you create a user dialog box, especially a Tools Options page or a Toolbox property page.

Notes for Callers

The simplest implementation of DialogPage requires only the definition of public properties on the implementing class. The property types must support conversion to and from strings through TypeConverter.

The base implementation of DialogPage provides default handlers for standard windows events, and implements the Component, IWin32Window, and IProfileManager.

Classes derived from DialogPage have the following:

  • Automatic support for component sharing through the Visual Studio DTE automation object model.

    • Any instance of DialogPage is an automation object, because the class inherits the Component interface implementation.

    • Applications that must access the automation object of the class use the AutomationObject property.

      The AutomationObject property returns this (Me in Visual Basic), because the implementation of DialogPage is already an automation object by default.

    • An implementation of DialogPage can offer an automation object other than itself by overriding the base AutomationObject implementation. For example, this might be done to provide separate user interface and the object models.

  • Support for the Visual Studio settings mechanism, based on the public properties of the automation object of the derived class.

  • A default user interface that is based on the public properties of the automation object of the derived class.

    • For a dialog page implementation to provide a Tools Options page, it must be registered by using ProvideOptionPageAttribute.

    • For a dialog page implementation to provide a Toolbox dialog page, it must be registered by using ProvideToolboxPageAttribute.

    • Dialog pages use Window to return a IWin32Window, which provides a handle to the window that provides the user interface of the class.

    • By default, the window that is referenced by Window is a property grid, which is implemented by an instance of PropertyGrid by selecting the automation object.

    • The DialogPage base class uses its implementation of AutomationObject to obtain the automation object of the class and the public properties of that automation object.

    • Changes to public properties made through the user interface of a dialog page are automatically saved to local storage (typically the registry) by a call to the SaveSettingsToStorage method.

    • A dialog page implementation can change its user interface by overriding Window.

Note

Typically, an instance of a dialog page class is its own automation object. Therefore, properties that are persisted or displayed are those of the class that is derived from DialogPage. However, if AutomationObject returns another object, it is that object's properties, not the class's, that are persisted or displayed.

Thread Safety

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

See Also

Reference

Microsoft.VisualStudio.Shell Namespace

IProfileManager

Component

PropertyGrid

IWin32Window

Other Resources

Extending the Automation Model

Options Pages

Toolbox (Visual Studio SDK)

State Persistence and the Visual Studio IDE

Extending the Visual Studio Environment