[System.ComponentModel.Description("AreaTreeView")]
public class AreaTreeView : System.Web.UI.UserControl, SmartPart.IUserControl
{
protected System.Web.UI.WebControls.Label ErrorMessage;
protected Microsoft.Web.UI.WebControls.TreeView AreaList;
protected const string ImagesFolder = "wpresources/images/";
private bool _isExpanded = true;
private string _expandLevel;
private Microsoft.SharePoint.SPWeb _spweb;
"public properties"#region "public properties"
[System.ComponentModel.Browsable(true),
System.ComponentModel.Description("展开深度")]
public string ExpandLevel
{
get { return _expandLevel; }
set { _expandLevel = value;}
}
[System.ComponentModel.Browsable(true),
System.ComponentModel.Description("默认展开")]
public bool IsExpanded
{
get { return _isExpanded; }
set { _isExpanded = value; }
}
public Microsoft.SharePoint.SPWeb SPWeb
{
get
{
return _spweb;
}
set
{
_spweb = value;
}
}
#endregion
private void Page_Load(object sender, System.EventArgs e)
{
try
{
if(ExpandLevel != null)
{
AreaList.ExpandLevel = int.Parse(ExpandLevel);//TreeView的展开深度
                }
if(AreaList.Nodes.Count>0)
{
AreaList.Nodes.Clear();//清除已有节点
                }
SPWeb spweb = null;
SPWebCollection subWebs = null;
TreeNode node = new TreeNode();//定义根节点
                spweb = SPControl.GetContextWeb(Context);//获取当前Web站点
                subWebs = spweb.GetSubwebsForCurrentUser();//获取当前站点下的所有子站点
                if(this.SPWeb.ID == spweb.ID)
{
node.Text = "<b>"+spweb.Title+"</b>";//当前站点粗体显示
                }
else
{
node.Text = spweb.Title;
}
node.Expanded = this.IsExpanded;//是否展开根节点
                node.NavigateUrl = spweb.Url;
AreaList.Nodes.Add(node);
AddTreeNode(spweb,AreaList.Nodes[0]);//调用递归函数生成所有子节点
            }
catch(Exception ex)
{
ErrorMessage.Text = ex.Message;
}
}
private void AddTreeNode(SPWeb currentWeb, TreeNode parentNode)
{
foreach(SPWeb web in currentWeb.GetSubwebsForCurrentUser())
{
TreeNode node = new TreeNode();
if(this.SPWeb.ID == web.ID)
{
node.Text = "<b>"+web.Title+"</b>";
}
else
{
node.Text = web.Title;
}
node.NavigateUrl = web.Url;
parentNode.Nodes.Add(node);
AddTreeNode(web,node);
}
}
Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
            InitializeComponent();
base.OnInit(e);
}
/**//// <summary>
///        设计器支持所需的方法 - 不要使用代码编辑器
///        修改此方法的内容。
/// </summary>
        private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}