Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WebForms / System / Web / UI / Design / WebControls / SiteMapDataSourceDesigner.cs / 1 / SiteMapDataSourceDesigner.cs
//------------------------------------------------------------------------------ ////// Copyright (c) Microsoft Corporation. All Rights Reserved. /// Information Contained Herein is Proprietary and Confidential. /// //----------------------------------------------------------------------------- namespace System.Web.UI.Design.WebControls { using System; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design; using System.Design; using System.Diagnostics; using System.Text; using System.Web; using System.Web.UI; using System.Web.UI.Design; using System.Web.UI.WebControls; ////// /// [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)] public class SiteMapDataSourceDesigner : HierarchicalDataSourceDesigner, IDataSourceDesigner { internal static readonly SiteMapSchema SiteMapHierarchicalSchema = new SiteMapSchema(); private SiteMapDataSource _siteMapDataSource; private SiteMapProvider _siteMapProvider; private static readonly string _siteMapNodeType = typeof(SiteMapNode).Name; public override bool CanRefreshSchema { get { return true; } } internal SiteMapProvider DesignTimeSiteMapProvider { get { if (_siteMapProvider == null) { IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost)); _siteMapProvider = new DesignTimeSiteMapProvider(host); } return _siteMapProvider; } } internal SiteMapDataSource SiteMapDataSource { get { return _siteMapDataSource; } } public override DesignerHierarchicalDataSourceView GetView(string viewPath) { return new SiteMapDesignerHierarchicalDataSourceView(this, viewPath); } public virtual string[] GetViewNames() { return new string[0]; } ////// Provides design-time support for the /// ///web control. /// public override void Initialize(IComponent component) { VerifyInitializeArgument(component, typeof(SiteMapDataSource)); base.Initialize(component); _siteMapDataSource = (SiteMapDataSource)component; } /// public override void OnComponentChanged(object sender, ComponentChangedEventArgs e) { base.OnComponentChanged(sender, e); OnDataSourceChanged(EventArgs.Empty); } public override void RefreshSchema(bool preferSilent) { try { SuppressDataSourceEvents(); Debug.Assert(CanRefreshSchema, "CanRefreshSchema is false - RefreshSchema should not be called"); // The schema of the SiteMapDataSource never changes, however // its design-time data can change. By clearing out the provider // we will cause a new one to be created on the next query for // design time data, and it will have all the changes from the // .sitemap file. _siteMapProvider = null; OnDataSourceChanged(EventArgs.Empty); } finally { ResumeDataSourceEvents(); } } internal class SiteMapSchema : IDataSourceSchema { IDataSourceViewSchema[] IDataSourceSchema.GetViews() { return new SiteMapDataSourceViewSchema[] {new SiteMapDataSourceViewSchema()}; } } internal class SiteMapDataSourceViewSchema : IDataSourceViewSchema { string IDataSourceViewSchema.Name { get { return _siteMapNodeType; } } IDataSourceViewSchema[] IDataSourceViewSchema.GetChildren() { return null; } IDataSourceFieldSchema[] IDataSourceViewSchema.GetFields() { return new SiteMapDataSourceTextField[] { SiteMapDataSourceTextField.DescriptionField, SiteMapDataSourceTextField.TitleField, SiteMapDataSourceTextField.UrlField, }; } } private class SiteMapDataSourceTextField : IDataSourceFieldSchema { internal static readonly SiteMapDataSourceTextField DescriptionField = new SiteMapDataSourceTextField("Description"); internal static readonly SiteMapDataSourceTextField TitleField = new SiteMapDataSourceTextField("Title"); internal static readonly SiteMapDataSourceTextField UrlField = new SiteMapDataSourceTextField("Url"); private string _fieldName; internal SiteMapDataSourceTextField(string fieldName) { _fieldName = fieldName; } Type IDataSourceFieldSchema.DataType { get { return typeof(string); } } bool IDataSourceFieldSchema.Identity { get { return false; } } bool IDataSourceFieldSchema.IsReadOnly { get { return true; } } bool IDataSourceFieldSchema.IsUnique { get { return false; } } int IDataSourceFieldSchema.Length { get { return -1; } } string IDataSourceFieldSchema.Name { get { return _fieldName; } } bool IDataSourceFieldSchema.Nullable { get { return true; } } int IDataSourceFieldSchema.Precision { get { return -1; } } bool IDataSourceFieldSchema.PrimaryKey { get { return false; } } int IDataSourceFieldSchema.Scale { get { return -1; } } } #region IDataSourceDesigner implementation bool IDataSourceDesigner.CanConfigure { get { return CanConfigure; } } bool IDataSourceDesigner.CanRefreshSchema { get { return CanRefreshSchema; } } event EventHandler IDataSourceDesigner.DataSourceChanged { add { DataSourceChanged += value; } remove { DataSourceChanged -= value; } } event EventHandler IDataSourceDesigner.SchemaRefreshed { add { SchemaRefreshed += value; } remove { SchemaRefreshed -= value; } } void IDataSourceDesigner.Configure() { Configure(); } DesignerDataSourceView IDataSourceDesigner.GetView(string viewName) { return new SiteMapDesignerDataSourceView(this, viewName); } string[] IDataSourceDesigner.GetViewNames() { return GetViewNames(); } void IDataSourceDesigner.RefreshSchema(bool preferSilent) { RefreshSchema(preferSilent); } void IDataSourceDesigner.ResumeDataSourceEvents() { ResumeDataSourceEvents(); } void IDataSourceDesigner.SuppressDataSourceEvents() { SuppressDataSourceEvents(); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- arclist.cs
- SchemaImporter.cs
- StringKeyFrameCollection.cs
- ObjectConverter.cs
- ValidationErrorEventArgs.cs
- MissingFieldException.cs
- DoubleAnimationClockResource.cs
- QueryCacheManager.cs
- TemplateDefinition.cs
- DesignerActionMethodItem.cs
- DataSourceControlBuilder.cs
- TrackingDataItemValue.cs
- InkPresenter.cs
- Crc32.cs
- StringSorter.cs
- ErasingStroke.cs
- SinglePageViewer.cs
- ZipIOExtraFieldPaddingElement.cs
- WindowsTab.cs
- SystemColors.cs
- CodeMethodInvokeExpression.cs
- WhitespaceRule.cs
- BitmapEffectDrawingContextState.cs
- SchemaComplexType.cs
- SoapTypeAttribute.cs
- CollaborationHelperFunctions.cs
- ControllableStoryboardAction.cs
- DataListItem.cs
- TextSearch.cs
- ProfileSettingsCollection.cs
- Link.cs
- CookielessHelper.cs
- InputEventArgs.cs
- followingquery.cs
- ClientUtils.cs
- DataObjectAttribute.cs
- TextEndOfLine.cs
- DeviceSpecificDialogCachedState.cs
- DataTransferEventArgs.cs
- TreeNodeClickEventArgs.cs
- UriTemplateCompoundPathSegment.cs
- SqlComparer.cs
- Light.cs
- DefaultBinder.cs
- OdbcConnection.cs
- Deflater.cs
- ZoneButton.cs
- Inflater.cs
- BindingManagerDataErrorEventArgs.cs
- Clipboard.cs
- HelloOperationCD1AsyncResult.cs
- HtmlInputButton.cs
- DesignBindingConverter.cs
- PrePostDescendentsWalker.cs
- CompositionAdorner.cs
- ThreadExceptionDialog.cs
- MSAAWinEventWrap.cs
- DispatchChannelSink.cs
- ServiceReference.cs
- SchemaAttDef.cs
- CoTaskMemHandle.cs
- objectresult_tresulttype.cs
- RowUpdatingEventArgs.cs
- TreeNode.cs
- Activity.cs
- Model3D.cs
- Html32TextWriter.cs
- StackBuilderSink.cs
- recordstate.cs
- RangeValueProviderWrapper.cs
- safesecurityhelperavalon.cs
- ECDsaCng.cs
- HtmlInputImage.cs
- DbMetaDataColumnNames.cs
- NullExtension.cs
- FloaterParaClient.cs
- Duration.cs
- UriScheme.cs
- MSAANativeProvider.cs
- PeerFlooder.cs
- MetadataSource.cs
- ReflectionHelper.cs
- BitmapEffectCollection.cs
- TextContainerChangedEventArgs.cs
- PopupEventArgs.cs
- SoapProtocolReflector.cs
- XmlBaseWriter.cs
- ActivityTypeCodeDomSerializer.cs
- DateTimeConstantAttribute.cs
- ObjectMaterializedEventArgs.cs
- TreeNodeBindingCollection.cs
- InputLangChangeRequestEvent.cs
- IPEndPoint.cs
- NativeCompoundFileAPIs.cs
- Win32Native.cs
- TableParagraph.cs
- SortedList.cs
- GenericPrincipal.cs
- ExpressionEvaluator.cs
- ColorDialog.cs