本文叙述如何自定义SharePoint的固有页面，比较简单，用一句话说就是“做个页面，写一句代码。”

创建SharePoint空解决方案，添加Layouts映射文件夹，添加页面文件error.aspx和signout.aspx。

error.aspx

<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Import Namespace="Microsoft.SharePoint.ApplicationPages" %>
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
    Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="error.aspx.cs" Inherits="CustomPages.error"
    DynamicMasterPageFile="~masterurl/default.master" %>

<asp:Content ID="PageHead" ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">
</asp:Content>
<asp:Content ID="Main" ContentPlaceHolderID="PlaceHolderMain" runat="server">
    出现错误，请联系管理员
    <!--自定义错误页面，在此页面写代码-->
</asp:Content>
<asp:Content ID="PageTitle" ContentPlaceHolderID="PlaceHolderPageTitle" runat="server">
    应用程序页
</asp:Content>
<asp:Content ID="PageTitleInTitleArea" ContentPlaceHolderID="PlaceHolderPageTitleInTitleArea"
    runat="server">
    我的应用程序页
</asp:Content>

<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Import Namespace="Microsoft.SharePoint.ApplicationPages" %>
<%@ Register TagPrefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
    Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="signout.aspx.cs" Inherits="CustomPages.signout"
    MasterPageFile="~/_layouts/simple.master" %>

<asp:Content ContentPlaceHolderID="PlaceHolderPageTitle" runat="server">
    <SharePoint:EncodedLiteral runat="server" Text="<%$Resources:wss,signout_pagetitle%>"
        EncodeMethod='HtmlEncode' />
</asp:Content>
<asp:Content ContentPlaceHolderID="PlaceHolderPageTitleInTitleArea" runat="server">
    <SharePoint:EncodedLiteral runat="server" Text="<%$Resources:wss,signout_pagetitle%>"
        EncodeMethod='HtmlEncode' />
</asp:Content>
<asp:Content ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">
    <script type="text/javascript">
        function ULSd63() { var o = new Object; o.ULSTeamName = "Microsoft SharePoint Foundation"; o.ULSFileName = "SignOut.aspx"; return o; }
        function _spBodyOnLoad() {
            ULSd63: ;
            window.close();
        }
    </script>
</asp:Content>
<asp:Content ContentPlaceHolderID="PlaceHolderMain" runat="server">
    <asp:Label ID="lbPageDescription" Text="<%$Resources:wss,signout_pagedescription%>"
        runat="server" />
</asp:Content>

然后添加feature，激活和取消激活事件

public override void FeatureActivated(SPFeatureReceiverProperties properties)
        {
            SPWebApplication webApp = properties.Feature.Parent as SPWebApplication;
            if (null != webApp)
            {
                webApp.UpdateMappedPage(SPWebApplication.SPCustomPage.Error, "/_layouts/SP_MIP/CustomPages/error.aspx");
                webApp.UpdateMappedPage(SPWebApplication.SPCustomPage.Signout, "/_layouts/SP_MIP/CustomPages/signout.aspx");
                webApp.Update(true);
            }
        }

        public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
        {
            SPWebApplication webApp = properties.Feature.Parent as SPWebApplication;
            if (null != webApp)
            {
                webApp.UpdateMappedPage(SPWebApplication.SPCustomPage.Error, null);
                webApp.UpdateMappedPage(SPWebApplication.SPCustomPage.Signout, null);
                webApp.Update(true);
            }
        }

webApp.UpdateMappedPage(SPWebApplication.SPCustomPage.Error,"/_layouts/SP_MIP/CustomPages/error.aspx");

有这些页面可以自定义

SharePoint开发 - 自定义页面（错误页、登出页）