105 lines
3.5 KiB
C#
105 lines
3.5 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="ErrorWebPart.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Web.UI.WebControls.WebParts {
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using System;
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using System.Collections;
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using System.ComponentModel;
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using System.Drawing;
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using System.Globalization;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.Util;
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[
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ToolboxItem(false)
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]
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public class ErrorWebPart : ProxyWebPart, ITrackingPersonalizable {
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private string _errorMessage;
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// No constructor that takes a WebPart, since we ony use the ErrorWebPart when the original
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// WebPart could not be instantiated.
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public ErrorWebPart(string originalID, string originalTypeName, string originalPath, string genericWebPartID) :
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base(originalID, originalTypeName, originalPath, genericWebPartID) {
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}
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public string ErrorMessage {
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get {
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return (_errorMessage != null) ? _errorMessage : String.Empty;
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}
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set {
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_errorMessage = value;
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}
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}
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protected override void AddAttributesToRender(HtmlTextWriter writer) {
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WebPartZoneBase zone = Zone;
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if (zone != null && !zone.ErrorStyle.IsEmpty) {
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zone.ErrorStyle.AddAttributesToRender(writer, this);
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}
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base.AddAttributesToRender(writer);
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}
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// Can be overridden by derived classes to set properties
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protected virtual void EndLoadPersonalization() {
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// We don't really need to set AllowEdit, since EditorPart.Display has
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// a special case for ErrorWebPart. However, let's set it to false anyway
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// for consistency.
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AllowEdit = false;
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// We want to force the user to see the ErrorWebPart, and we don't want to allow
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// them to hide or minimize it.
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ChromeState = PartChromeState.Normal;
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Hidden = false;
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AllowHide = false;
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AllowMinimize = false;
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// There is no reason to allow exporting an ErrorWebPart.
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ExportMode = WebPartExportMode.None;
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// We never call IsAuthorized() on ErrorWebParts, so there is no reason for
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// AuthorizationFilter to be set.
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AuthorizationFilter = String.Empty;
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}
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protected internal override void RenderContents(HtmlTextWriter writer) {
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string errorMessage = ErrorMessage;
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if (!String.IsNullOrEmpty(errorMessage)) {
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writer.WriteEncodedText(SR.GetString(SR.ErrorWebPart_ErrorText, errorMessage));
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}
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}
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#region ITrackingPersonalizable implementation
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// It doesn't really matter what we return from this property, since this codepath will
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// never be reached for the ErrorWebPart. However, we return true since we will never need
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// the framework to diff our properties.
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bool ITrackingPersonalizable.TracksChanges {
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get {
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return true;
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}
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}
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void ITrackingPersonalizable.BeginLoad() {
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}
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void ITrackingPersonalizable.BeginSave() {
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}
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void ITrackingPersonalizable.EndLoad() {
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EndLoadPersonalization();
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}
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void ITrackingPersonalizable.EndSave() {
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}
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#endregion
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}
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}
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