using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;

namespace RestoreForm
{
    class Program
    {
        static void Main(string[] args)
        {
            string listUrl = "http://moss/Lists/Sample List";
            using (SPSite site = new SPSite(listUrl))
            {
                using (SPWeb web = site.OpenWeb())
                {
                    SPList list = web.GetList(listUrl);
                    RestoreListForm(list, PAGETYPE.PAGE_DISPLAYFORM);
                    //RestoreListForm(list, PAGETYPE.PAGE_EDITFORM);
                    //RestoreListForm(list, PAGETYPE.PAGE_NEWFORM);
                }
            }

            Console.Write("Done.");
            Console.ReadLine();
        }

        private static void RestoreListForm(SPList list, PAGETYPE ptype)
        {
            SPWeb web = list.ParentWeb;

            // Create Form File
            string formFilename = null;
            SPControlMode formMode = SPControlMode.Invalid;
            SPFileCollection files = list.RootFolder.Files;
            Guid wpId = Guid.NewGuid();
            CalcFormInfo(ptype, out formFilename, out formMode);

            byte[] formContents = Encoding.ASCII.GetBytes(String.Format(pagecontent, list.Title, list.ID.ToString("B"), formMode, (int)ptype, wpId.ToString("B"), String.Concat("g_", wpId.ToString("D").Replace("-", "_")).ToLower()));

            try
            {
                if (files[formFilename].Exists)
                    files[formFilename].Delete();
            }
            catch { }

            SPFile formFile = files.Add(formFilename, formContents, true);
        }

        private static void CalcFormInfo(PAGETYPE type, out string fileName, out SPControlMode mode)
        {
            switch (type)
            {
                case PAGETYPE.PAGE_DISPLAYFORM:
                    fileName = "DispForm.aspx";
                    mode = SPControlMode.Display;
                    break;
                case PAGETYPE.PAGE_EDITFORM:
                    fileName = "EditForm.aspx";
                    mode = SPControlMode.Edit;
                    break;
                case PAGETYPE.PAGE_NEWFORM:
                    fileName = "NewForm.aspx";
                    mode = SPControlMode.New;
                    break;
                default:
                    fileName = null;
                    mode = SPControlMode.Invalid;
                    break;
            }
        }

        static string pagecontent =
        @"<%@ Page language=""C#"" MasterPageFile=""~masterurl/default.master""    Inherits=""Microsoft.SharePoint.WebPartPages.WebPartPage,Microsoft.SharePoint,Version=12.0.0.0,Culture=neutral,PublicKeyToken=71e9bce111e9429c"" meta:webpartpageexpansion=""full"" meta:progid=""SharePoint.WebPartPage.Document"" %>
<%@ Register Tagprefix=""SharePoint"" Namespace=""Microsoft.SharePoint.WebControls"" Assembly=""Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"" %> <%@ Register Tagprefix=""Utilities"" Namespace=""Microsoft.SharePoint.Utilities"" Assembly=""Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"" %> <%@ Import Namespace=""Microsoft.SharePoint"" %> <%@ Register Tagprefix=""WebPartPages"" Namespace=""Microsoft.SharePoint.WebPartPages"" Assembly=""Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c"" %>
<asp:Content ContentPlaceHolderId=""PlaceHolderPageTitle"" runat=""server"">
	<SharePoint:ListFormPageTitle runat=""server""/>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderPageTitleInTitleArea"" runat=""server"">
	<SharePoint:ListProperty Property=""LinkTitle"" runat=""server"" id=""ID_LinkTitle""/>
	: 
	<SharePoint:ListItemProperty id=""ID_ItemProperty"" MaxLength=40 runat=""server""/>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderPageImage"" runat=""server"">
	<IMG SRC=""/_layouts/images/blank.gif"" width=1 height=1 alt="""">
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderLeftNavBar"" runat=""server""/>
<asp:Content ContentPlaceHolderId=""PlaceHolderMain"" runat=""server"">
<table cellpadding=0 cellspacing=0 id=""onetIDListForm"">
 <tr>
  <td>
 <WebPartPages:WebPartZone runat=""server"" FrameType=""None"" ID=""Main"" Title=""loc:Main""><ZoneTemplate>
<WebPartPages:ListFormWebPart runat=""server"" __MarkupType=""xmlmarkup"" WebPart=""true"" __WebPartId=""{4}"" >
<WebPart xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns=""http://schemas.microsoft.com/WebPart/v2"">
  <Title>{0}</Title>
  <FrameType>Default</FrameType>
  <Description />
  <IsIncluded>true</IsIncluded>
  <PartOrder>1</PartOrder>
  <FrameState>Normal</FrameState>
  <Height />
  <Width />
  <AllowRemove>true</AllowRemove>
  <AllowZoneChange>true</AllowZoneChange>
  <AllowMinimize>true</AllowMinimize>
  <AllowConnect>true</AllowConnect>
  <AllowEdit>true</AllowEdit>
  <AllowHide>true</AllowHide>
  <IsVisible>true</IsVisible>
  <DetailLink />
  <HelpLink />
  <HelpMode>Modeless</HelpMode>
  <Dir>Default</Dir>
  <PartImageSmall />
  <MissingAssembly>Cannot import this Web Part.</MissingAssembly>
  <PartImageLarge />
  <IsIncludedFilter />
  <ExportControlledProperties>true</ExportControlledProperties>
  <ConnectionID>00000000-0000-0000-0000-000000000000</ConnectionID>
  <ID>{5}</ID>
  <ListName xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">{1}</ListName>
  <ListItemId xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">0</ListItemId>
  <ControlMode xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">{2}</ControlMode>
  <TemplateName xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">ListForm</TemplateName>
  <FormType xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">{3}</FormType>
  <ViewFlag xmlns=""http://schemas.microsoft.com/WebPart/v2/ListForm"">1048576</ViewFlag>
</WebPart>
</WebPartPages:ListFormWebPart>
</ZoneTemplate></WebPartPages:WebPartZone>
 <IMG SRC=""/_layouts/images/blank.gif"" width=590 height=1 alt="""">
  </td>
 </tr>
</table>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderTitleLeftBorder"" runat=""server"">
<table cellpadding=0 height=100% width=100% cellspacing=0>
 <tr><td class=""ms-areaseparatorleft""><IMG SRC=""/_layouts/images/blank.gif"" width=1 height=1 alt=""""></td></tr>
</table>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderTitleAreaClass"" runat=""server"">
<script id=""onetidPageTitleAreaFrameScript"">
	document.getElementById(""onetidPageTitleAreaFrame"").className=""ms-areaseparator"";
</script>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderBodyAreaClass"" runat=""server"">
<style type=""text/css"">
.ms-bodyareaframe {{
	padding: 8px;
	border: none;
}}
</style>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderBodyLeftBorder"" runat=""server"">
<div class='ms-areaseparatorleft'><IMG SRC=""/_layouts/images/blank.gif"" width=8 height=100% alt=""""></div>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderTitleRightMargin"" runat=""server"">
<div class='ms-areaseparatorright'><IMG SRC=""/_layouts/images/blank.gif"" width=8 height=100% alt=""""></div>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderBodyRightMargin"" runat=""server"">
<div class='ms-areaseparatorright'><IMG SRC=""/_layouts/images/blank.gif"" width=8 height=100% alt=""""></div>
</asp:Content>
<asp:Content ContentPlaceHolderId=""PlaceHolderTitleAreaSeparator"" runat=""server""/>
";
    }

}