Sharepoint Tree View Sites Navigation

• Download SitesViwrWP - 7.9 KB
• Download TreeSitesViwr - 7.4 MB

Introduction

In this tip, I provide a Sharepoint webpart solution developed using Visual Studio 2010. It contains a Sharepoint Treeview webpart that displays site collections and subsites based on permissions applied on these sites.

When a user is logged in to the page, he is going to view the sites and subsites of all site collections - that he has permission on it - in one place then when the user clicks on one of the titles, he will be navigated to the site in a new page.

Main Requirements

• The Tree View will display the sites titles based on permission of the logged in user.
• A user with Permission from Read only to Administration can click on the Title of the Site to navigate
• The site will be displayed in a new window.
• A user with no permission on a specific site will not be able to see the link.
• No configurations are required, can be added to any site at any level in a specific webapplication.

ScreenShot

Deployment

• The solution will be deployed on site level (scope)
• A user control will be added in 14% in this location:
  C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\TEMPLATE\CONTROLTEMPLATES\TreeSitesViwr\SitesViwrWP\ SitesViwrWPUserControl.ascx
• A solution Assembly DLL will be deployed in the GAC (TreeSitesViwr.dll) C:\windows\assembly\GAC_msil\TreeSitesViwr\1.0.0.0__19d8525006072941
• A resource file will be added in the App_GlobalResources (SitesViwrRes .resx).
• 2 DLLs will be added in the bin folder of the web application (Telerik.Web.Design.dll) and (Telerik.Web.UI.dll)
• Source control will also be added to the web.config file.
  XML

  <SafeControl Assembly="TreeSitesViwr, Version=1.0.0.0, Culture=neutral,
  PublicKeyToken=19d8525006072941" Namespace="TreeSitesViwr.SitesViwrWP" 
  TypeName="*" Safe="True" SafeAgainstScript="False" /> 

• Feature name is TreeSitesViwr Feature

Solution

• WSP file (TreeSitesViwr.wsp) (Download SitesViwrWP)
• Visual WebPart contains user control and code behind (Download TreeSitesViwr)

Code

First UserControl Design:

• Register Telerik Assemblies:
  ASP.NET

  <%--for telerik only--%>
  <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %> 
  <%@ Register assembly="Telerik.Web.Design" namespace="Telerik.Web.UI.Design" 
  tagprefix="telerik" %>  

  Add RadTreeView control and define its properties:

  XML

  <telerik:RadTreeView runat="server" ID="SiteTV" BackColor="Silver" 
  BorderColor="#660033" BorderStyle="Solid" ForeColor="Black" Width="300px">
  </telerik:RadTreeView> 

In the code behind, add these functions:

• In the Page_Load:
  C#

  protected void Page_Load(object sender, EventArgs e)
  {
      if (!IsPostBack)
      {
          BuildSiteTree();//call this function to build the tree View     
      }
  
      SiteTV.CollapseAllNodes();// by default all nodes are Collapse
  } 

• Add this function BuildSiteTree( ):
  C#

  private void BuildSiteTree()
  {
      int CountSites = 0;
      int Count_No_perm = 0;
      
      // Get all Site Collections
      
      SPWebApplication WebApp = SPContext.Current.Web.Site.WebApplication;
      SPSiteCollection TScoll = WebApp.Sites;
      
      //to loop through all site collections with sys privilege 
      SPSecurity.RunWithElevatedPrivileges(delegate()
      {
          try
          {
              foreach (SPSite TSite in TScoll)
              {
                  try
                  {
                      //All site collections except the Default (Root)
                      if (CountSites != 0)
                      {
                          //Display RootNodes with permission
                          bool hasperm = UserHasPerm(TSite.Url.ToString());
                          RadTreeNode rootNode = new RadTreeNode
                          	(TSite.RootWeb.Title, TSite.Url);
                          rootNode.NavigateUrl = TSite.Url;
                          rootNode.Target = "_blank";
                     
                          if (UserHasPerm(TSite.Url.ToString()))
                          {
                              SiteTV.Nodes.Add(rootNode);
                          }
                          using (SPWeb web = TSite.OpenWeb())
                          {
                              try
                              {
                                  foreach (SPWeb subSite in web.Webs)
                                  {
                                      if (UserHasPerm(subSite.Url.ToString()))
                                      {
                                          try
                                          {
                                              AddNodes(subSite, rootNode.Nodes);
                                              Count_No_perm = Count_No_perm + 1;
                                          }
                                          catch
                                          {
                                              throw;
                                          }
                                          
                                          finally
                                          {
                                              if (subSite != null)
                                                  subSite.Dispose();
                                          }
                                      }
                                  }
                              }
                              
                              //if problem in accessing subsites just move to the next 
                              catch
                              {
                                  continue;
                              }
                          }
                      }
                      
                      CountSites = CountSites + 1;
                  }
                  
                      //if problem in accessing certain site collection just move to the next 
                  catch
                  {
                      continue;
                  }
              }
              //if there was no access on any site collections
              
              if (Count_No_perm == 0)
              {
                  WPpnl.Visible = false;
                  lblError.Visible = true;
                  lblError.Text = HttpContext.GetGlobalResourceObject
                  	("SitesViwrRes", "NoSites").ToString();
              }
          }
          //problem with site collections level
          catch 
          {
              throw;
          }
      });
  }

• Also add this function UserHasPerm( ) for authentication check and it will return bool value T if the logged in user has permission and F if not:
  C#

  private bool UserHasPerm(string TSite)
  {
       SPWeb web = new SPSite(TSite).OpenWeb();
       bool hasperm = web.DoesUserHavePermissions
                (SPContext.Current.Web.CurrentUser.LoginName, SPBasePermissions.ViewPages);
       return hasperm;
  }