Code:
/ DotNET / DotNET / 8.0 / untmp / Orcas / RTM / ndp / fx / src / xsp / System / Web / Extensions / ui / UpdateProgress.cs / 1 / UpdateProgress.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.Drawing; using System.Globalization; using System.Security.Permissions; using System.Text; using System.Web; using System.Web.UI; using System.Web.Script; using System.Web.Resources; using System.Web.Util; [ AspNetHostingPermission(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal), AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal), DefaultProperty("AssociatedUpdatePanelID"), Designer("System.Web.UI.Design.UpdateProgressDesigner, " + AssemblyRef.SystemWebExtensionsDesign), ParseChildren(true), PersistChildren(false), ToolboxBitmap(typeof(EmbeddedResourceFinder), "System.Web.Resources.UpdateProgress.bmp"), ] public class UpdateProgress : Control, IScriptControl { private ITemplate _progressTemplate; private Control _progressTemplateContainer; private int _displayAfter = 500; private bool _dynamicLayout = true; private string _associatedUpdatePanelID; [ Category("Behavior"), DefaultValue(""), IDReferenceProperty(typeof(UpdatePanel)), ResourceDescription("UpdateProgress_AssociatedUpdatePanelID"), SuppressMessage("Microsoft.Naming", "CA1706:ShortAcronymsShouldBeUppercase"), TypeConverter("System.Web.UI.Design.UpdateProgressAssociatedUpdatePanelIDConverter") ] public string AssociatedUpdatePanelID { get { if (_associatedUpdatePanelID == null) { return String.Empty; } return _associatedUpdatePanelID; } set { _associatedUpdatePanelID = value; } } [ DefaultValue(500), ResourceDescription("UpdateProgress_DisplayAfter"), Category("Behavior") ] public int DisplayAfter { get { return _displayAfter; } set { if (value < 0) { throw new ArgumentOutOfRangeException(AtlasWeb.UpdateProgress_DisplayAfterInvalid); } _displayAfter = value; } } [ Browsable(false), PersistenceMode(PersistenceMode.InnerProperty), ResourceDescription("UpdateProgress_ProgressTemplate"), ] public ITemplate ProgressTemplate { get { return _progressTemplate; } set { _progressTemplate = value; } } [ DefaultValue(true), ResourceDescription("UpdateProgress_DynamicLayout"), Category("Behavior") ] public bool DynamicLayout { get { return _dynamicLayout; } set { _dynamicLayout = value; } } private ScriptManager ScriptManager { get { ScriptManager scriptManager = ScriptManager.GetCurrent(Page); if (scriptManager == null) { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.Common_ScriptManagerRequired, ID)); } return scriptManager; } } [SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")] protected internal override void OnPreRender(EventArgs e) { base.OnPreRender(e); ScriptManager.RegisterScriptControl(this); // Set up the progress template if (_progressTemplate == null) { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.UpdateProgress_TemplateRequired, ID)); } _progressTemplateContainer = new Control(); _progressTemplate.InstantiateIn(_progressTemplateContainer); Controls.Add(_progressTemplateContainer); } protected internal override void Render(HtmlTextWriter writer) { writer.AddAttribute(HtmlTextWriterAttribute.Id, ClientID); if (_dynamicLayout) { writer.AddStyleAttribute(HtmlTextWriterStyle.Display, "none"); } else { writer.AddStyleAttribute(HtmlTextWriterStyle.Visibility, "hidden"); writer.AddStyleAttribute(HtmlTextWriterStyle.Display, "block"); } writer.RenderBeginTag(HtmlTextWriterTag.Div); base.Render(writer); writer.RenderEndTag(); // div if (!DesignMode) { ScriptManager.RegisterScriptDescriptors(this); } } [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification = "Matches IScriptControl interface.")] protected virtual IEnumerableGetScriptReferences() { yield break; } [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification = "Matches IScriptControl interface.")] protected virtual IEnumerable GetScriptDescriptors() { // Don't render any scripts when partial rendering is not enabled if (Page != null && ScriptManager.SupportsPartialRendering && Visible) { ScriptControlDescriptor desc = new ScriptControlDescriptor("Sys.UI._UpdateProgress", ClientID); string updatePanelClientID = null; if (!String.IsNullOrEmpty(AssociatedUpdatePanelID)) { // Try both the NamingContainer and the Page UpdatePanel c = ControlUtil.FindTargetControl(AssociatedUpdatePanelID, this, true) as UpdatePanel; if (c != null) updatePanelClientID = c.ClientID; else { throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.UpdateProgress_NoUpdatePanel, AssociatedUpdatePanelID)); } } desc.AddProperty("associatedUpdatePanelId", updatePanelClientID); desc.AddProperty("dynamicLayout", DynamicLayout); desc.AddProperty("displayAfter", DisplayAfter); yield return desc; } yield break; } #region IScriptControl Members IEnumerable IScriptControl.GetScriptReferences() { return GetScriptReferences(); } IEnumerable IScriptControl.GetScriptDescriptors() { return GetScriptDescriptors(); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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