Yeah, that's happened to me before, too. It would be nice to know
how to fix it.

Ever since this happened to me, when I need to customize DispForm,
EditForm, etc, I always just copy them and modify the COPY. Then, once
you have the copy looking like you want it, you can go into the list's
properties in SP Designer and point it so that the new EditForm is the
default. That way, you're never messing with the original file.

When you remove  the ListFormWebPart from the web part  page you should substitute
a DataFormWebPart in its place using the Insert->SharePoint Controls->Custom
List Form menu entry in SharePoint Designer. This will add a DataFormWebPart on
the page and retain the appropriate parameter passing to the page.

I tried to substitute the ListFormWebPart with a
DataFormWebPart in the original EditForm.aspx, but the result was once
again a failing link  like http://sharepoint2007:100/?ID=77 for the
Edit icon.

Is there any way I can modify my EditForm.aspx (below) to retain the
appropriate parameters passed to the page so the Edit icon  link works
sharepoint2007:100/.../EditForm.aspx?ID=77

I'm not sure where the parameter passing goes wrong, please.


<%@ Page language="C#" MasterPageFile="~masterurl/default.master"
Inherits="Microsoft.SharePoint.WebPartPages.WebPartPage,Microsoft.SharePoint,Ver\
sion=12.0.0.0,Culture=neutral,PublicKeyToken=71e9bce111e9429c"
meta:progid="SharePoint.WebPartPage.Document"
meta:webpartpageexpansion="full" %>
<%@ Register tagprefix="My_EditForm" namespace="My_EditForm"
assembly="My_EditForm, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=110a43d643dc684d" %>
<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></ZoneTemplate></WebPartPages:WebPartZone>
<My_EditForm:EditFormClass runat="server" ID="EditFormClass1"
Title="EditFormClass" __MarkupType="vsattributemarkup"
__WebPartId="{1385416f-4d3a-46b3-857e-5f9b27142575}" WebPart="true"
__designer:IsClosed="false"></My_EditForm:EditFormClass>
<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"/>