Working with Sitecore Link Fields

General Link Field / General Link Search Field

Sitecore.Data.Fields.LinkField class is used to access the data template fields of type general link. 

                                                            

Access a link type field 

Sitecore.Data.Fields.LinkField lnkField = current.Fields ["General Link Field"];

        if (lnkField! = null)

        {

            if (lnkField.LinkType == "external" || lnkField.LinkType == "anchor" || lnkField.LinkType == "mailto" || lnkField.LinkType == "javascript")

            {

                HyperLink1.Text = lnkField.Text;

                HyperLink1.NavigateUrl = lnkField.Url;

            }

            if (lnkField.LinkType == "internal")

            {

                HyperLink1.Text = lnkField.Text;

                HyperLink1.NavigateUrl = Sitecore.Links.LinkManager.GetItemUrl (lnkField.TargetItem);

            }

            else if (lnkField.LinkType == "media")

            {

               Image1.ImageUrl = Sitecore.StringUtil.EnsurePrefix ('/',   Sitecore.Resources.Media.MediaManager.GetMediaUrl (lnkField.TargetItem));

          }

        }

Edit Link Field – External

using (new Sitecore.SecurityModel.SecurityDisabler ())

        {

            Database master = Sitecore.Configuration.Factory.GetDatabase ("master");

            Sitecore.Data.Items.Item current = master.GetItem (Sitecore.Context.Item.ID);

            current.Editing.BeginEdit ();

            Sitecore.Data.Fields.LinkField lnkField = current.Fields["General Link Field"];

            if (lnkField != null)

            {

                lnkField.LinkType = "external";

                lnkField.Url = "http://sitecore.com";

            }

            current.Editing.EndEdit ();

        }

Edit Link Field – Internal

using (new Sitecore.SecurityModel.SecurityDisabler ())

        {

            Database master = Sitecore.Configuration.Factory.GetDatabase ("master");

            Sitecore.Data.Items.Item current = master.GetItem (Sitecore.Context.Item.ID);

            Sitecore.Data.Items.Item editItem = master.GetItem ("/sitecore/content/Home/Page1");

            current.Editing.BeginEdit ();

            Sitecore.Data.Fields.LinkField lnkField = current.Fields ["General Link Field"];

            if (lnkField!= null)

            {

                lnkField.Clear ();

                lnkField.LinkType = "internal";

                Sitecore.Links.UrlOptions urlOptions = Sitecore.Links.LinkManager.GetDefaultUrlOptions ();

                urlOptions.AlwaysIncludeServerUrl = false;

                lnkField.Url = Sitecore.Links.LinkManager.GetItemUrl (editItem, urlOptions);

                lnkField.TargetID = editItem.ID;

            }

            current.Editing.EndEdit ();

        }

Edit Link Field – Media

using (new Sitecore.SecurityModel.SecurityDisabler ())

        {

            Database master = Sitecore.Configuration.Factory.GetDatabase ("master");

            Sitecore.Data.Items.Item current = master.GetItem (Sitecore.Context.Item.ID);

            Sitecore.Data.Items.Item editItem = master.GetItem ("/sitecore/media library/Images/Translate");

            current.Editing.BeginEdit ();

            Sitecore.Data.Fields.LinkField lnkField = current.Fields ["General Link Field"];

            if (lnkField != null)

            {

                lnkField.Clear ();

                lnkField.LinkType = "media";

                lnkField.Url = editItem.Paths.MediaPath;

                lnkField.TargetID = editItem.ID;

            }

            current.Editing.EndEdit ();

        }