Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CompMod / System / ComponentModel / Design / MenuCommand.cs / 1305376 / MenuCommand.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ namespace System.ComponentModel.Design { using Microsoft.Win32; using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Diagnostics; using System.Security.Permissions; ////// [HostProtection(SharedState = true)] [System.Runtime.InteropServices.ComVisible(true)] [System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.InheritanceDemand, Name="FullTrust")] [System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.LinkDemand, Name="FullTrust")] public class MenuCommand { // Events that we suface or call on // private EventHandler execHandler; private EventHandler statusHandler; private CommandID commandID; private int status; private IDictionary properties; ////// Represents a Windows /// menu or toolbar item. /// ////// Indicates that the given command is enabled. An enabled command may /// be selected by the user (it's not greyed out). /// private const int ENABLED = 0x02; //tagOLECMDF.OLECMDF_ENABLED; ////// Indicates that the given command is not visible on the command bar. /// private const int INVISIBLE = 0x10; ////// Indicates that the given command is checked in the "on" state. /// private const int CHECKED = 0x04; // tagOLECMDF.OLECMDF_LATCHED; ////// Indicates that the given command is supported. Marking a command /// as supported indicates that the shell will not look any further up /// the command target chain. /// private const int SUPPORTED = 0x01; // tagOLECMDF.OLECMDF_SUPPORTED ////// public MenuCommand(EventHandler handler, CommandID command) { this.execHandler = handler; this.commandID = command; this.status = SUPPORTED | ENABLED; } ////// Initializes a new instance of ///. /// /// public virtual bool Checked { get { return (status & CHECKED) != 0; } set { SetStatus(CHECKED, value); } } ///Gets or sets a value indicating whether this menu item is checked. ////// public virtual bool Enabled { get{ return (status & ENABLED) != 0; } set { SetStatus(ENABLED, value); } } private void SetStatus(int mask, bool value){ int newStatus = status; if (value) { newStatus |= mask; } else { newStatus &= ~mask; } if (newStatus != status) { status = newStatus; OnCommandChanged(EventArgs.Empty); } } ///Gets or /// sets a value indicating whether this menu item is available. ////// public virtual IDictionary Properties { get { if (properties == null) { properties = new HybridDictionary(); } return properties; } } ////// public virtual bool Supported { get{ return (status & SUPPORTED) != 0; } set{ SetStatus(SUPPORTED, value); } } ///Gets or sets a value /// indicating whether this menu item is supported. ////// public virtual bool Visible { get { return (status & INVISIBLE) == 0; } set { SetStatus(INVISIBLE, !value); } } ///Gets or sets a value /// indicating if this menu item is visible. ////// public event EventHandler CommandChanged { add { statusHandler += value; } remove { statusHandler -= value; } } ////// Occurs when the menu command changes. /// ////// public virtual CommandID CommandID { get { return commandID; } } ///Gets the ///associated with this menu command. /// public virtual void Invoke() { if (execHandler != null){ try { execHandler(this, EventArgs.Empty); } catch (CheckoutException cxe) { if (cxe == CheckoutException.Canceled) return; throw; } } } ////// Invokes a menu item. /// ////// public virtual void Invoke(object arg) { Invoke(); } ////// Invokes a menu item. The default implementation of this method ignores /// the argument, but deriving classes may override this method. /// ////// public virtual int OleStatus { get { return status; } } ////// Gets the OLE command status code for this menu item. /// ////// [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")] // Safe: FullTrust LinkDemand to instantiate an object of this class. protected virtual void OnCommandChanged(EventArgs e) { if (statusHandler != null) { statusHandler(this, e); } } ///Provides notification and is called in response to /// a ///event. /// Overrides object's ToString(). /// public override string ToString() { string str = CommandID.ToString() + " : "; if ((status & SUPPORTED) != 0) { str += "Supported"; } if ((status & ENABLED) != 0) { str += "|Enabled"; } if ((status & INVISIBLE) == 0) { str += "|Visible"; } if ((status & CHECKED) != 0) { str += "|Checked"; } return str; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DocumentXmlWriter.cs
- LostFocusEventManager.cs
- WebBrowser.cs
- ConsoleTraceListener.cs
- LogSwitch.cs
- WindowsAuthenticationModule.cs
- SqlCacheDependencyDatabase.cs
- ProxyWebPartManager.cs
- ADMembershipProvider.cs
- ClientData.cs
- HttpsHostedTransportConfiguration.cs
- TemplateBuilder.cs
- NameValueSectionHandler.cs
- Point3DCollectionConverter.cs
- AccessDataSourceView.cs
- CorrelationExtension.cs
- SiteOfOriginContainer.cs
- FontWeights.cs
- Int32AnimationBase.cs
- DebuggerAttributes.cs
- JsonDataContract.cs
- TextRangeSerialization.cs
- EmptyReadOnlyDictionaryInternal.cs
- DesignerPainter.cs
- FreeFormDragDropManager.cs
- ShapingWorkspace.cs
- KoreanCalendar.cs
- XamlBuildProvider.cs
- MachineKeyConverter.cs
- MimeMapping.cs
- EntityContainerAssociationSetEnd.cs
- FixedTextView.cs
- DataGridViewSelectedRowCollection.cs
- InvalidPropValue.cs
- ParameterBuilder.cs
- ConfigurationSectionHelper.cs
- ConnectionProviderAttribute.cs
- DataRowCollection.cs
- PersonalizationAdministration.cs
- FormsAuthenticationEventArgs.cs
- AmbientLight.cs
- XmlObjectSerializerReadContext.cs
- WebException.cs
- RequestCache.cs
- UnhandledExceptionEventArgs.cs
- GlobalizationAssembly.cs
- PipelineDeploymentState.cs
- MissingMethodException.cs
- IDReferencePropertyAttribute.cs
- _DomainName.cs
- ToolStripOverflowButton.cs
- ConfigXmlElement.cs
- CorrelationActionMessageFilter.cs
- SimpleTypeResolver.cs
- GroupStyle.cs
- TripleDES.cs
- SemaphoreFullException.cs
- CapabilitiesRule.cs
- ExtensionCollection.cs
- CodeSnippetCompileUnit.cs
- MLangCodePageEncoding.cs
- SplashScreenNativeMethods.cs
- TypeUtils.cs
- EraserBehavior.cs
- Version.cs
- MetadataItemSerializer.cs
- ToolStripProgressBar.cs
- ClientCultureInfo.cs
- StringArrayEditor.cs
- RegexStringValidator.cs
- RandomDelaySendsAsyncResult.cs
- UnmanagedMemoryStream.cs
- TrackBarRenderer.cs
- EditingCoordinator.cs
- RuntimeResourceSet.cs
- HashCodeCombiner.cs
- CodeObjectCreateExpression.cs
- Vector.cs
- LayoutManager.cs
- QueuePropertyVariants.cs
- VirtualizedContainerService.cs
- HyperLink.cs
- FeatureSupport.cs
- PostBackOptions.cs
- SettingsPropertyWrongTypeException.cs
- InstanceDataCollectionCollection.cs
- ZipIOExtraFieldPaddingElement.cs
- DesignerUtils.cs
- TextServicesContext.cs
- SqlServer2KCompatibilityCheck.cs
- FixedElement.cs
- BufferedConnection.cs
- TextPattern.cs
- ReaderWriterLock.cs
- BulletDecorator.cs
- ComPlusInstanceContextInitializer.cs
- DataGridAutoFormat.cs
- Margins.cs
- CuspData.cs
- MetadataStore.cs