Getting a usable SPItem URL to a display form

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This is definitely from the "I can't believe I hadn't blogged this already department".

When you try to use the SPListItem.Url property you wind up getting a url that's relative to the site (even though it starts with a '/').

I've written this method that will return a list item url and takes into account the fact that the urls differ when they're lists or document libraries:


private string GetItemUrl(SPListItem listItem)
        {
            string result;

            string itemUrlTemp = listItem.Url.Replace("Lists/", "");
            string siteRelativeListUrl = itemUrlTemp.Substring(0, itemUrlTemp.IndexOf('/'));

            if (listItem.ListItems.List.BaseTemplate == SPListTemplateType.DocumentLibrary)
                result = SPEncode.UrlEncodeAsUrl(String.Format("{0}/{1}/Forms/Dispform.aspx?ID={2}", listItem.ListItems.List.ParentWeb.Url, siteRelativeListUrl, listItem.ID));
            else
                result = SPEncode.UrlEncodeAsUrl(String.Format("{0}/Lists/{1}/Dispform.aspx?ID={2}", listItem.ListItems.List.ParentWeb.Url, siteRelativeListUrl, listItem.ID));

            return result;

        }






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