PostBackTrigger.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 / PostBackTrigger.cs / 1305376 / PostBackTrigger.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI { 
    using System; 
    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;
 
    public class PostBackTrigger : UpdatePanelControlTrigger { 

        private IScriptManagerInternal _scriptManager; 

        public PostBackTrigger() {
        }
 
        internal PostBackTrigger(IScriptManagerInternal scriptManager) {
            _scriptManager = scriptManager; 
        } 

        [ 
        SuppressMessage("Microsoft.Naming", "CA1709:IdentifiersShouldBeCasedCorrectly", MessageId = "ID"),
        TypeConverter("System.Web.UI.Design.PostBackTriggerControlIDConverter, " +
            AssemblyRef.SystemWebExtensionsDesign)
        ] 
        public new string ControlID {
            get { 
                return base.ControlID; 
            }
            set { 
                base.ControlID = value;
            }
        }
 
        internal IScriptManagerInternal ScriptManager {
            get { 
                if (_scriptManager == null) { 
                    Page page = Owner.Page;
                    if (page == null) { 
                        throw new InvalidOperationException(AtlasWeb.Common_PageCannotBeNull);
                    }
                    _scriptManager = UI.ScriptManager.GetCurrent(page);
                    if (_scriptManager == null) { 
                        throw new InvalidOperationException(String.Format(CultureInfo.InvariantCulture, AtlasWeb.Common_ScriptManagerRequired, Owner.ID));
                    } 
                } 
                return _scriptManager;
            } 
        }

        protected internal override void Initialize() {
            base.Initialize(); 

            Control associatedControl = FindTargetControl(false); 
 
            ScriptManager.RegisterPostBackControl(associatedControl);
        } 

        protected internal override bool HasTriggered() {
            // This type of trigger never triggers since it causes a regular postback,
            // where all UpdatePanels render anyway. 
            return false;
        } 
 
        [SuppressMessage("Microsoft.Security", "CA2123:OverrideLinkDemandsShouldBeIdenticalToBase")]
        public override string ToString() { 
            if (String.IsNullOrEmpty(ControlID)) {
                return "PostBack";
            }
            else { 
                return "PostBack: " + ControlID;
            } 
        } 
    }
} 

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

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