Sharepoint 2010 : Create or Provisioning Custom EditForm.aspx

below post is useful for below scenarios

=============================================

suppose if you are in a situation like, you rolled out hundreds of sites to production environment, after that if u get any new requirements for editform.aspx, then we have to upgrade existing editform.aspx. in our situation (need to apply javascript code for 6000 sites) we could not figrued out how to upgrade existing editform.aspx so we decided to create a new custom editform.aspx and changed existing list defaultediturl to customeditform.aspx

to acheive this we have to create a feature and where ever we want, we can activate this feature.

once it is activated our list automatically pointing to customeditform.aspx page instead of editform.aspx

namespace TestUpdateEditForm.Features.Feature1

{

    /// <summary>

    /// This class handles events raised during feature activation, deactivation, installation, uninstallation, and upgrade.

    /// </summary>

    /// <remarks>

    /// The GUID attached to this class may be used during packaging and should not be modified.

    /// </remarks>

    [Guid("8dd12231-23e6-4b86-94c9-56b1143cdd40")]

    public class Feature1EventReceiver : SPFeatureReceiver

    {

        // Uncomment the method below to handle the event raised after a feature has been activated.

        public override void FeatureActivated(SPFeatureReceiverProperties properties)

        {

            try

            {

                using (SPSite oSite = (SPSite)properties.Feature.Parent)

                {

                    using (SPWeb oWeb = oSite.OpenWeb())

                    {

                        SPList oList = oWeb.Lists.TryGetList("CustomDocuments");

                        SPFolder oRootFolder = oList.RootFolder;

                        if (oList != null)

                        {

                            string customFormUrl = oWeb.Url + "/" + oRootFolder.Url + "/CustomEditForm.aspx";

                            SPFile CustomEditform = ListExtension.ProvisionDisplayForm(oList, "CustomEditForm.aspx", PAGETYPE.PAGE_EDITFORMDIALOG, "/_layouts/XSL/formxml.xsl");

                            oList.DefaultEditFormUrl = CustomEditform.Url;

                            oList.Update();

                        }

                    }

                }

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }

    }

}

Add ListExtension Class as mentioned in the picture.

namespace TestUpdateEditForm.Features.Feature1

{

    static class ListExtension

    {

        public static SPFile ProvisionDisplayForm(this SPList list, string formName, PAGETYPE pageType, string xslUrl)

        {

            SPWeb currentWeb = list.ParentWeb;

            Uri webUrl = new Uri(currentWeb.Url);

            if (!formName.Contains(".aspx")) formName += formName + ".aspx";

            //get into the list form folder and provision a new form

            SPFolder root = list.RootFolder;

            string customFormUrl = webUrl.LocalPath + "/" + root.Url + "/Forms/" + formName;

            SPFile file = root.Files.Add(customFormUrl, SPTemplateFileType.FormPage);

            //Provision IList Web Part in this case DataForm web part onto the new form

            SPLimitedWebPartManager limitedWebPartManager = file.GetLimitedWebPartManager(PersonalizationScope.Shared);

            ListFormWebPart OlistFormWPEdit = new ListFormWebPart();

           

            OlistFormWPEdit.ListName = list.ID.ToString("B").ToUpper();

            OlistFormWPEdit.ListId = list.ID;     

            OlistFormWPEdit.PageType = PAGETYPE.PAGE_EDITFORMDIALOG;

            OlistFormWPEdit.Title = "";

            OlistFormWPEdit.ListTitle = list.Title;

            OlistFormWPEdit.TemplateName = "ListForm";

            OlistFormWPEdit.AllowClose = false;

            OlistFormWPEdit.AllowConnect = false;

            OlistFormWPEdit.ControlMode = SPControlMode.Edit;

            OlistFormWPEdit.FormType = 6;

            OlistFormWPEdit.AllowZoneChange = false;          

            //add the webpart onto the page

            limitedWebPartManager.AddWebPart(OlistFormWPEdit, "Main", 0);

            //this code is usefull when u want to append javascript

            XmlDocument xmlDoc = new XmlDocument();

            XmlElement element = xmlDoc.CreateElement("p");

            XmlAttribute align = xmlDoc.CreateAttribute("align");

            align.Value = "right";

            element.Attributes.Append(align);

            element.InnerText = "<script type='text/javascript'>_spBodyOnLoadFunctionNames.push('TestJavascript');"+

                                "function TestJavascript() {" +

                                "alert('SuryaTesting');}" +

                                "</script>";

            ContentEditorWebPart oCWP = new ContentEditorWebPart();

            oCWP.ChromeType = PartChromeType.None;

            oCWP.Content = element;

            limitedWebPartManager.AddWebPart(oCWP, "Main", 1);

           

            //set form as custom display form

            switch (pageType)

            {

                case PAGETYPE.PAGE_DISPLAYFORM:

                    list.DefaultDisplayFormUrl = customFormUrl;

                    break;

                case PAGETYPE.PAGE_EDITFORM:

                    list.DefaultEditFormUrl = customFormUrl;

                    break;

                case PAGETYPE.PAGE_NEWFORM:

                    list.DefaultNewFormUrl = customFormUrl;

                   

                    break;

                default:

                    break;

            }

            return file;

        }

    }

}

once you build and deploy this feature, go to site settings > site collection features > 

you can see your feature and click on activate button.

go to you library when you edit existing item , now you can see  customeditform .aspx