ErrorWebPart.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 / Web / UI / WebParts / ErrorWebPart.cs / 1305376 / ErrorWebPart.cs
                        

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

namespace System.Web.UI.WebControls.WebParts { 
 
    using System;
    using System.Collections; 
    using System.ComponentModel;
    using System.Drawing;
    using System.Globalization;
    using System.Web.UI; 
    using System.Web.UI.WebControls;
    using System.Web.Util; 
 
    [
    ToolboxItem(false) 
    ]
    public class ErrorWebPart : ProxyWebPart, ITrackingPersonalizable {

        private string _errorMessage; 

        // No constructor that takes a WebPart, since we ony use the ErrorWebPart when the original 
        // WebPart could not be instantiated. 

        public ErrorWebPart(string originalID, string originalTypeName, string originalPath, string genericWebPartID) : 
            base(originalID, originalTypeName, originalPath, genericWebPartID) {
        }

        public string ErrorMessage { 
            get {
                return (_errorMessage != null) ? _errorMessage : String.Empty; 
            } 
            set {
                _errorMessage = value; 
            }
        }

        protected override void AddAttributesToRender(HtmlTextWriter writer) { 
            WebPartZoneBase zone = Zone;
            if (zone != null && !zone.ErrorStyle.IsEmpty) { 
                zone.ErrorStyle.AddAttributesToRender(writer, this); 
            }
 
            base.AddAttributesToRender(writer);
        }

        // Can be overridden by derived classes to set properties 
        protected virtual void EndLoadPersonalization() {
            // We don't really need to set AllowEdit, since EditorPart.Display has 
            // a special case for ErrorWebPart.  However, let's set it to false anyway 
            // for consistency.
            AllowEdit = false; 

            // We want to force the user to see the ErrorWebPart, and we don't want to allow
            // them to hide or minimize it.
            ChromeState = PartChromeState.Normal; 
            Hidden = false;
            AllowHide = false; 
            AllowMinimize = false; 

            // There is no reason to allow exporting an ErrorWebPart. 
            ExportMode = WebPartExportMode.None;

            // We never call IsAuthorized() on ErrorWebParts, so there is no reason for
            // AuthorizationFilter to be set. 
            AuthorizationFilter = String.Empty;
        } 
 
        protected internal override void RenderContents(HtmlTextWriter writer) {
            string errorMessage = ErrorMessage; 
            if (!String.IsNullOrEmpty(errorMessage)) {
                writer.WriteEncodedText(SR.GetString(SR.ErrorWebPart_ErrorText, errorMessage));
            }
        } 

        #region ITrackingPersonalizable implementation 
        // It doesn't really matter what we return from this property, since this codepath will 
        // never be reached for the ErrorWebPart.  However, we return true since we will never need
        // the framework to diff our properties. 
        bool ITrackingPersonalizable.TracksChanges {
            get {
                return true;
            } 
        }
 
        void ITrackingPersonalizable.BeginLoad() { 
        }
 
        void ITrackingPersonalizable.BeginSave() {
        }

        void ITrackingPersonalizable.EndLoad() { 
            EndLoadPersonalization();
        } 
 
        void ITrackingPersonalizable.EndSave() {
        } 
        #endregion
    }
}
 

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

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK