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
- _HTTPDateParse.cs
- FullTrustAssembliesSection.cs
- HttpResponseWrapper.cs
- PageBuildProvider.cs
- GregorianCalendarHelper.cs
- ControlType.cs
- StoreContentChangedEventArgs.cs
- IntranetCredentialPolicy.cs
- TransformerInfoCollection.cs
- DispatcherFrame.cs
- IfAction.cs
- WindowsImpersonationContext.cs
- RotationValidation.cs
- CultureInfoConverter.cs
- SpanIndex.cs
- WCFBuildProvider.cs
- DbConnectionPoolGroup.cs
- MobileUserControl.cs
- SqlReorderer.cs
- DeferrableContent.cs
- AdornerPresentationContext.cs
- TypeLoadException.cs
- MetadataArtifactLoaderResource.cs
- UriTemplateTable.cs
- RouteCollection.cs
- DrawListViewSubItemEventArgs.cs
- HiddenFieldPageStatePersister.cs
- TableStyle.cs
- CharConverter.cs
- C14NUtil.cs
- ClockGroup.cs
- NodeLabelEditEvent.cs
- AppDomainUnloadedException.cs
- DataViewManager.cs
- EntityDataSource.cs
- SupportingTokenProviderSpecification.cs
- sqlpipe.cs
- DataStorage.cs
- HyperLinkColumn.cs
- SqlConnectionString.cs
- ImageBrush.cs
- UIEndRequest.cs
- ToolStripContainer.cs
- TypeDescriptorFilterService.cs
- QilBinary.cs
- InvalidPipelineStoreException.cs
- TreeViewEvent.cs
- TypeUtil.cs
- ReadOnlyAttribute.cs
- StateItem.cs
- ManagementClass.cs
- TreeViewCancelEvent.cs
- OracleDataAdapter.cs
- UnmanagedMemoryStream.cs
- SelectionProviderWrapper.cs
- AstTree.cs
- Pair.cs
- WindowsListViewItemCheckBox.cs
- TextStore.cs
- StrongNameSignatureInformation.cs
- SQLByteStorage.cs
- Stroke2.cs
- DriveNotFoundException.cs
- ConfigXmlSignificantWhitespace.cs
- MessageQueueAccessControlEntry.cs
- ConfigurationErrorsException.cs
- NominalTypeEliminator.cs
- _KerberosClient.cs
- ModuleConfigurationInfo.cs
- StickyNoteHelper.cs
- MarshalByRefObject.cs
- SHA1Managed.cs
- DbParameterHelper.cs
- CodeGenerator.cs
- CharKeyFrameCollection.cs
- Int32CollectionValueSerializer.cs
- DataGridViewColumn.cs
- XmlBinaryReader.cs
- HtmlInputSubmit.cs
- InputLanguageManager.cs
- ListItemCollection.cs
- ProtocolsConfigurationEntry.cs
- ReaderContextStackData.cs
- AddInContractAttribute.cs
- EntityViewContainer.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- ContainerVisual.cs
- ApplicationDirectory.cs
- EntityClassGenerator.cs
- ComNativeDescriptor.cs
- Variable.cs
- EncryptedKey.cs
- SQLBinaryStorage.cs
- SrgsSubset.cs
- Rect3DValueSerializer.cs
- DesignerProperties.cs
- SupportsEventValidationAttribute.cs
- TextRunCache.cs
- CorePropertiesFilter.cs
- DateBoldEvent.cs