Visual WebPart Basic Development--treeview control reads all folders and files in the document library (recursive method reads)

Visual WebPart Basic Development--treeview control reads all folders and files in the document library (recursive method reads)

1. Create a new document library named "Test Document Library" in the deployed SharePoint site and add subfolders and sub-files at all levels for testing

2. Create a new blank SharePoint project in VS2010

3. Create a Visual Web Part

Add a TreeView control in Treeviewtestusercontrol.ascx with ID "TreeView1"

Add the following implementation code in the TreeViewTestUserControl.ascx.cs source folder

usingSystem;usingSystem.Web.UI;usingSystem.Web.UI.WebControls;usingSystem.Web.UI.WebControls.WebParts;//Add ReferenceusingMicrosoft.SharePoint;namespacetreeviewproject.treeviewtest{ Public Partial classTreeviewtestusercontrol:usercontrol {protected voidPage_Load (Objectsender, EventArgs e) {            if(!IsPostBack)            {binddoclib (); }        }        /// <summary>        ///Binding Document Libraries/// </summary>        Private voidBinddoclib () {stringURL =SPContext.Current.Web.Url; #regionSpsecurity.runwithelevatedprivileges (Delegate()            {                using(SPSite site =NewSPSite (URL)) {                    using(SPWeb Web =site. OpenWeb ()) {foreach(SPList listinchweb. Lists) {if(list. Basetemplate! = splisttemplatetype.documentlibrary)//Locate the document library                            {                                Continue; }                            Else                            {                                if(list. Title = ="Test Document Library") {TreeNode node=NewTreeNode (); Node. Text=list.                                    Title; Node. NAVIGATEURL=list.                                    Defaultviewurl;                                    TREEVIEW1.NODES.ADD (node); Childdocfolder (list.                                RootFolder, node);            }                            }                        }                    }                }            }); #endregion        }        /// <summary>        ///recursive method to read document library/// </summary>        /// <param name= "folder" >parent Folder</param>        /// <param name= "CurrentNode" >Current Node</param>        Private voidChilddocfolder (SPFolder folder, TreeNode currentnode) {stringURL =SPContext.Current.Web.Url; if(folder. Subfolders.count = =0)// //returns if no subfolders exist, and adds the files in the folder to the TreeView            {                foreach(SPFile fileinchFolder. Files)//Show sub-Files{TreeNode node=NewTreeNode (); Node. Text=file.                    Name; Node. NAVIGATEURL= URL +"/"+file.                    URL; Node. IMAGEURL="_layouts/images/"+file.                    ICONURL;                CURRENTNODE.CHILDNODES.ADD (node); }                return; }            Else            {                foreach(SPFile fileinchFolder. Files)//add files from the current folder into the TreeView{TreeNode node=NewTreeNode (); Node. Text=file.                    Name; Node. NAVIGATEURL= URL +"/"+file.                    URL; Node. IMAGEURL="_layouts/images/"+file.                    ICONURL;                CURRENTNODE.CHILDNODES.ADD (node); }                foreach(SPFolder SPFolderinchfolder. Subfolders) {if(SPFolder. Name = ="Forms")//Remove the default system folder                    {                        Continue; } TreeNode Node=NewTreeNode (); Node. Text=SPFolder.                    Name; Node. NAVIGATEURL= URL +"/"+SPFolder.                    URL; Node. IMAGEURL="_layouts/images/folder.gif"; CURRENTNODE.CHILDNODES.ADD (node); //Add the current folder to the TreeViewChilddocfolder (spfolder, node);//Show files and folders below the current folder                }            }        }     }}

Code completion, click Test Deployment WebPart to SharePoint site, insert webpart on page, test effect as follows

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Visual WebPart Basic Development--treeview control reads all folders and files in the document library (recursive method reads)