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
- LineServicesRun.cs
- EntityDataSourceChangingEventArgs.cs
- SchemaElementLookUpTableEnumerator.cs
- ObjectStateFormatter.cs
- CalendarButton.cs
- ControlPager.cs
- SelectionItemPattern.cs
- Keyboard.cs
- BitmapImage.cs
- SqlConnectionStringBuilder.cs
- MemberAccessException.cs
- ColumnMapCopier.cs
- RenderingEventArgs.cs
- SecurityTokenSerializer.cs
- Thread.cs
- FormViewModeEventArgs.cs
- RightsManagementErrorHandler.cs
- InheritedPropertyDescriptor.cs
- _NegotiateClient.cs
- InputLangChangeEvent.cs
- WebPartTransformerCollection.cs
- DoubleCollection.cs
- SoapFault.cs
- SystemPens.cs
- StrokeIntersection.cs
- GACMembershipCondition.cs
- CompModSwitches.cs
- COSERVERINFO.cs
- BufferedStream.cs
- HttpContext.cs
- ZoneLinkButton.cs
- Simplifier.cs
- WmlPhoneCallAdapter.cs
- QueryOpeningEnumerator.cs
- KeyManager.cs
- UInt16Storage.cs
- ClientSettingsSection.cs
- PrinterUnitConvert.cs
- OleDbError.cs
- EntitySetBase.cs
- SrgsElement.cs
- UnionCodeGroup.cs
- KeyValueConfigurationElement.cs
- GetReadStreamResult.cs
- ConfigXmlWhitespace.cs
- SafeReversePInvokeHandle.cs
- TextBox.cs
- DashStyle.cs
- DataGridAutoFormat.cs
- SharedDp.cs
- FrameworkElement.cs
- FixedSOMSemanticBox.cs
- DropDownList.cs
- CollectionEditorDialog.cs
- HtmlInputPassword.cs
- UserControlParser.cs
- DefaultSerializationProviderAttribute.cs
- OleStrCAMarshaler.cs
- CLSCompliantAttribute.cs
- ProgressBar.cs
- AppDomainManager.cs
- CipherData.cs
- ListControlBoundActionList.cs
- FixedBufferAttribute.cs
- SchemaImporterExtension.cs
- XmlDataCollection.cs
- MergablePropertyAttribute.cs
- EntityWithKeyStrategy.cs
- MetroSerializationManager.cs
- WebPartAuthorizationEventArgs.cs
- WriterOutput.cs
- TableLayoutCellPaintEventArgs.cs
- SspiSafeHandles.cs
- ProfileInfo.cs
- ServerType.cs
- StreamReader.cs
- ExpressionHelper.cs
- ObjectDataSourceFilteringEventArgs.cs
- RoleGroup.cs
- AdRotator.cs
- ChameleonKey.cs
- SoapFormatterSinks.cs
- OutputCacheSection.cs
- UndoManager.cs
- ImageField.cs
- DataBoundControlHelper.cs
- ParenthesizePropertyNameAttribute.cs
- EventSinkHelperWriter.cs
- FragmentQueryKB.cs
- SendingRequestEventArgs.cs
- IndexedString.cs
- TextBox.cs
- InternalDuplexChannelFactory.cs
- TableLayoutStyleCollection.cs
- Select.cs
- ToolStripRenderer.cs
- DefaultObjectMappingItemCollection.cs
- DesignerDataParameter.cs
- SerialPort.cs
- DataControlLinkButton.cs