Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / TemplateBuilder.cs / 1 / TemplateBuilder.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Classes related to templated control support * * Copyright (c) 1999 Microsoft Corporation */ namespace System.Web.UI { using System; using System.Collections; using System.Reflection; using System.ComponentModel; using System.ComponentModel.Design; using System.Security.Permissions; /* * This class defines the TemplateAttribute attribute that can be placed on * properties of type ITemplate. It allows the parser to strongly type the * container, which makes it easier to write render code in a template */ ////// [AttributeUsage(AttributeTargets.Property)] [AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)] public sealed class TemplateContainerAttribute : Attribute { private Type _containerType; private BindingDirection _bindingDirection; ///[To be supplied.] ////// public BindingDirection BindingDirection { get { return _bindingDirection; } } ///Whether the template supports two-way binding. ////// public Type ContainerType { get { return _containerType; } } ////// /// public TemplateContainerAttribute(Type containerType) : this(containerType, BindingDirection.OneWay) { } ///[To be supplied.] ////// public TemplateContainerAttribute(Type containerType, BindingDirection bindingDirection) { _containerType = containerType; _bindingDirection = bindingDirection; } } ///[To be supplied.] ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class TemplateBuilder : ControlBuilder, ITemplate { internal string _tagInnerText; private bool _allowMultipleInstances; private IDesignerHost _designerHost; public TemplateBuilder() { _allowMultipleInstances = true; } ///[To be supplied.] ////// // ID parameter name changed from ControlBuilder, so leave this to avoid a "breaking change" public override void Init(TemplateParser parser, ControlBuilder parentBuilder, Type type, string tagName, string ID, IDictionary attribs) { base.Init(parser, parentBuilder, type, tagName, ID, attribs); if (InPageTheme && ParentBuilder != null && ParentBuilder.IsControlSkin) { ((PageThemeParser)Parser).CurrentSkinBuilder = parentBuilder; } } public override void CloseControl() { base.CloseControl(); if (InPageTheme && ParentBuilder != null && ParentBuilder.IsControlSkin) { ((PageThemeParser)Parser).CurrentSkinBuilder = null; } } internal bool AllowMultipleInstances { get { return _allowMultipleInstances; } set { _allowMultipleInstances = value; } } // This code is only executed when used from the designer ///[To be supplied.] ////// public override object BuildObject() { return this; } ///[To be supplied.] ////// public override bool NeedsTagInnerText() { // We want SetTagInnerText() to be called if we're running in the // designer. return InDesigner; } internal void SetDesignerHost(IDesignerHost designerHost) { _designerHost = designerHost; } ///[To be supplied.] ////// public override void SetTagInnerText(string text) { // Save the inner text of the template tag _tagInnerText = text; } /* * ITemplate implementation * This implementation of ITemplate is only used in the designer */ ///[To be supplied.] ////// public virtual void InstantiateIn(Control container) { IServiceProvider builderServiceProvider = null; // Use the designer host to get one at designtime as the service provider if (_designerHost != null) { builderServiceProvider = _designerHost; } else if (!IsNoCompile) { // Otherwise, create a ServiceContainer and try using the container as the service provider ServiceContainer serviceContainer = new ServiceContainer(); if (container is IThemeResolutionService) { serviceContainer.AddService(typeof(IThemeResolutionService), (IThemeResolutionService)container); } if (container is IFilterResolutionService) { serviceContainer.AddService(typeof(IFilterResolutionService), (IFilterResolutionService)container); } builderServiceProvider = serviceContainer; } HttpContext context = null; TemplateControl savedTemplateControl = null; TemplateControl templateControl = container as TemplateControl; if (templateControl != null) { context = HttpContext.Current; if (context != null) savedTemplateControl = context.TemplateControl; } try { if (!IsNoCompile) SetServiceProvider(builderServiceProvider); if (context != null) { context.TemplateControl = templateControl; } BuildChildren(container); } finally { if (!IsNoCompile) SetServiceProvider(null); // Restore the previous template control if (context != null) context.TemplateControl = savedTemplateControl; } } ///[To be supplied.] ////// public virtual string Text { get { return _tagInnerText; } set { _tagInnerText = value; } } } // Delegates used for the compiled template ///[To be supplied.] ////// /// public delegate void BuildTemplateMethod(Control control); /* * This class is the ITemplate implementation that is called from the * generated page class code. It just passes the Initialize call on to a * delegate. */ ///[To be supplied.] ////// /// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class CompiledTemplateBuilder : ITemplate { private BuildTemplateMethod _buildTemplateMethod; ///[To be supplied.] ////// public CompiledTemplateBuilder(BuildTemplateMethod buildTemplateMethod) { _buildTemplateMethod = buildTemplateMethod; } // ITemplate::InstantiateIn ///[To be supplied.] ////// public void InstantiateIn(Control container) { _buildTemplateMethod(container); } } }[To be supplied.] ///
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