Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / UI / ExtenderControl.cs / 1305376 / ExtenderControl.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI { using System; using System.Collections.Generic; using System.ComponentModel; using System.Diagnostics.CodeAnalysis; using System.Globalization; using System.Web; using System.Web.UI; using System.Web.Resources; using System.Web.Util; [ DefaultProperty("TargetControlID"), Designer("System.Web.UI.Design.ExtenderControlDesigner, " + AssemblyRef.SystemWebExtensionsDesign), NonVisualControl(), ParseChildren(true), PersistChildren(false), ToolboxItem("System.Web.UI.Design.ExtenderControlToolboxItem, " + AssemblyRef.SystemWebExtensionsDesign), ] public abstract class ExtenderControl : Control, IExtenderControl { private string _targetControlID; private IScriptManagerInternal _scriptManager; private new IPage _page; protected ExtenderControl() { } internal ExtenderControl(IScriptManagerInternal scriptManager, IPage page) { _scriptManager = scriptManager; _page = page; } private IPage IPage { get { if (_page != null) { return _page; } else { Page page = Page; if (page == null) { throw new InvalidOperationException(AtlasWeb.Common_PageCannotBeNull); } return new PageWrapper(page); } } } private IScriptManagerInternal ScriptManager { get { if (_scriptManager == null) { Page page = Page; if (page == null) { throw new InvalidOperationException(AtlasWeb.Common_PageCannotBeNull); } _scriptManager = System.Web.UI.ScriptManager.GetCurrent(page); if (_scriptManager == null) { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.Common_ScriptManagerRequired, ID)); } } return _scriptManager; } } [ Category("Behavior"), DefaultValue(""), IDReferenceProperty, ResourceDescription("ExtenderControl_TargetControlID"), SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "ID"), ] public string TargetControlID { get { return (_targetControlID == null) ? String.Empty : _targetControlID; } set { _targetControlID = value; } } [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never) ] public override bool Visible { get { return base.Visible; } set { throw new NotImplementedException(); } } ////// Finds the closest UpdatePanel in the parent controls of the specified control. /// /// The control for which we want the closest UpdatePanel. ///An UpdatePanel or null if none was found. private static UpdatePanel FindUpdatePanel(Control control) { Control parent = control.Parent; while (parent != null) { UpdatePanel parentPanel = parent as UpdatePanel; if (parentPanel != null) { return parentPanel; } parent = parent.Parent; } return null; } [SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")] protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); RegisterWithScriptManager(); } private void RegisterWithScriptManager() { if (String.IsNullOrEmpty(TargetControlID)) { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ExtenderControl_TargetControlIDEmpty, ID)); } Control targetControl = FindControl(TargetControlID); if (targetControl == null) { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.ExtenderControl_TargetControlIDInvalid, ID, TargetControlID)); } // Check if the target control and its extender are in the same UpdatePanel if any: if (FindUpdatePanel(this) != FindUpdatePanel(targetControl)) { throw new InvalidOperationException(AtlasWeb.ExtenderControl_TargetControlDifferentUpdatePanel); } ScriptManager.RegisterExtenderControl(this, targetControl); } protected internal override void Render(HtmlTextWriter writer) { base.Render(writer); // DevDiv 97460: ScriptDescriptors only render if in server form, verify to avoid silently failing. IPage.VerifyRenderingInServerForm(this); // ScriptManager cannot be found in DesignMode, so do not attempt to register scripts. if (!DesignMode) { ScriptManager.RegisterScriptDescriptors(this); } } protected abstract IEnumerableGetScriptDescriptors(Control targetControl); [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification = "Implementation will likely return a new collection, which is too slow for a property")] protected abstract IEnumerable GetScriptReferences(); #region IExtenderControl Members IEnumerable IExtenderControl.GetScriptDescriptors(Control targetControl) { return GetScriptDescriptors(targetControl); } IEnumerable IExtenderControl.GetScriptReferences() { return GetScriptReferences(); } #endregion } } // 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
- DataControlLinkButton.cs
- StateRuntime.cs
- TimeSpanConverter.cs
- SecurityMode.cs
- CommandID.cs
- Panel.cs
- BooleanAnimationUsingKeyFrames.cs
- RectangleF.cs
- PositiveTimeSpanValidatorAttribute.cs
- NonBatchDirectoryCompiler.cs
- DataGridTableCollection.cs
- WebPartZoneCollection.cs
- RootBrowserWindowProxy.cs
- SqlWriter.cs
- ArraySubsetEnumerator.cs
- EnvelopedPkcs7.cs
- DomNameTable.cs
- Style.cs
- ColumnMapTranslator.cs
- ResponseBodyWriter.cs
- LinearKeyFrames.cs
- CommonObjectSecurity.cs
- OleDbDataAdapter.cs
- WebPartTransformerAttribute.cs
- ZipIOLocalFileHeader.cs
- AddInServer.cs
- Bezier.cs
- ReadWriteObjectLock.cs
- ZoneButton.cs
- ProxyWebPartManager.cs
- ConnectionManagementSection.cs
- PropertyAccessVisitor.cs
- PathFigureCollection.cs
- ProjectionPlanCompiler.cs
- RightsManagementEncryptionTransform.cs
- _SslSessionsCache.cs
- Label.cs
- EventLogSession.cs
- DataGridHelper.cs
- SafeEventLogWriteHandle.cs
- XmlTypeAttribute.cs
- ImportContext.cs
- RangeEnumerable.cs
- PageScaling.cs
- SoapReflectionImporter.cs
- DynamicMethod.cs
- TextEffect.cs
- ProxyGenerator.cs
- SqlDataSourceConfigureFilterForm.cs
- Sentence.cs
- Paragraph.cs
- X509Chain.cs
- COM2EnumConverter.cs
- TableCell.cs
- Resources.Designer.cs
- XamlBrushSerializer.cs
- TextPointerBase.cs
- TagElement.cs
- RowType.cs
- PropertyChangingEventArgs.cs
- HitTestWithGeometryDrawingContextWalker.cs
- Int32AnimationBase.cs
- TextParentUndoUnit.cs
- DoubleMinMaxAggregationOperator.cs
- ResourceContainer.cs
- DataGridItemCollection.cs
- ChangesetResponse.cs
- ScriptMethodAttribute.cs
- KoreanLunisolarCalendar.cs
- EventHandlersStore.cs
- HighlightVisual.cs
- ping.cs
- ObjectKeyFrameCollection.cs
- DelegatingConfigHost.cs
- SecurityTokenReferenceStyle.cs
- XmlSerializerAssemblyAttribute.cs
- SafeRightsManagementHandle.cs
- Point3DCollectionConverter.cs
- COM2IDispatchConverter.cs
- DbConnectionInternal.cs
- SmtpDigestAuthenticationModule.cs
- CodeDOMProvider.cs
- DataTableCollection.cs
- columnmapkeybuilder.cs
- DocumentEventArgs.cs
- PagerSettings.cs
- handlecollector.cs
- ButtonChrome.cs
- TextTrailingWordEllipsis.cs
- SqlBulkCopy.cs
- RichTextBox.cs
- CodeSnippetTypeMember.cs
- SpeechAudioFormatInfo.cs
- EntityDataSourceSelectedEventArgs.cs
- SourceItem.cs
- UpdatePanelTriggerCollection.cs
- RenderContext.cs
- Profiler.cs
- StreamSecurityUpgradeAcceptorBase.cs
- CultureInfo.cs