可視化webpart基礎開發——TreeView控件讀取文檔庫中的所有文件夾和文件(遞歸方法讀取)
1、在部署的sharepoint網站中新建一個名爲“測試文檔庫”的文檔庫,並添加各級的子文件夾和子文件,用於測試
2、在VS2010中新建空白sharepoint項目
3、創建可視化web部件
在TreeViewTestUserControl.ascx中添加TreeView控件,ID爲“TreeView1”
在TreeViewTestUserControl.ascx.cs源文件夾添加如下實現代碼
全部代碼:
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
//加入引用
using Microsoft.SharePoint;
namespace TreeViewProject.TreeViewTest
{
public partial class TreeViewTestUserControl : UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindDoclib();
}
}
/// <summary>
/// 綁定文檔庫
/// </summary>
private void BindDoclib()
{
string url = SPContext.Current.Web.Url;
#region
SPSecurity.RunWithElevatedPrivileges(delegate()
{
using (SPSite site = new SPSite(url))
{
using (SPWeb web = site.OpenWeb())
{
foreach (SPList list in web.Lists)
{
if (list.BaseTemplate != SPListTemplateType.DocumentLibrary)//找到文檔庫
{
continue;
}
else
{
if (list.Title == "測試文檔庫")
{
TreeNode node = new TreeNode();
node.Text = list.Title;
node.NavigateUrl = list.DefaultViewUrl;
TreeView1.Nodes.Add(node);
ChildDocFolder(list.RootFolder, node);
}
}
}
}
}
});
#endregion
}
/// <summary>
/// 遞歸方法讀取文檔庫
/// </summary>
/// <param name="folder">父文件夾</param>
/// <param name="currentNode">當前節點</param>
private void ChildDocFolder(SPFolder folder, TreeNode currentNode)
{
string url = SPContext.Current.Web.Url;
if (folder.SubFolders.Count == 0)// //如果不存在子文件夾就返回,並把文件夾中的文件加到TreeView中
{
foreach (SPFile file in folder.Files)//顯示子文件
{
TreeNode node = new TreeNode();
node.Text = file.Name;
node.NavigateUrl = url + "/" + file.Url;
node.ImageUrl = "_layouts/images/" + file.IconUrl;
currentNode.ChildNodes.Add(node);
}
return;
}
else
{
foreach (SPFile file in folder.Files)//添加當前文件夾中的文件到TreeView中
{
TreeNode node = new TreeNode();
node.Text = file.Name;
node.NavigateUrl = url + "/" + file.Url;
node.ImageUrl = "_layouts/images/" + file.IconUrl;
currentNode.ChildNodes.Add(node);
}
foreach (SPFolder spfolder in folder.SubFolders)
{
if (spfolder.Name == "Forms")//去掉默認的系統文件夾
{
continue;
}
TreeNode node = new TreeNode();
node.Text = spfolder.Name;
node.NavigateUrl = url + "/" + spfolder.Url;
node.ImageUrl ="_layouts/images/folder.gif";
currentNode.ChildNodes.Add(node); //添加當前文件夾到TreeView中
ChildDocFolder(spfolder, node); //展示當前文件夾下面的文件和文件夾
}
}
}
}
}
代碼完成,點擊測試部署webpart到sharepoint網站中,在頁面插入webpart,測試效果如下