ScriptControl.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Extensions / UI / ScriptControl.cs / 1305376 / ScriptControl.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.Resources; 
    using System.Web.UI;
    using System.Web.UI.WebControls; 
    using System.Web.Util; 

    public abstract class ScriptControl : WebControl, IScriptControl { 
        private IScriptManagerInternal _scriptManager;
        private new IPage _page;

        protected ScriptControl() { 
        }
 
        internal ScriptControl(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; 
            }
        } 
 
        [SuppressMessage("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers")]
        protected internal override void OnPreRender(EventArgs e) { 
            base.OnPreRender(e);
            ScriptManager.RegisterScriptControl(this);
        }
 
        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); 
            }
        } 
 
        [SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate",
            Justification = "Implementation will likely return a new collection, which is too slow for a property")] 
        protected abstract IEnumerable GetScriptDescriptors();

        [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 IScriptControl Members 
        IEnumerable IScriptControl.GetScriptDescriptors() {
            return GetScriptDescriptors(); 
        }

        IEnumerable IScriptControl.GetScriptReferences() {
            return GetScriptReferences(); 
        }
        #endregion 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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