SPSiteDataQuery.Webs property

Gets or sets the inner XML that specifies which Web sites to include in the query. as specified by the Scope attribute on the Webs tag in the query. By default, the query considers the current Web site, that is, the Web site from which the

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

Syntax

'Declaration
Public Property Webs As String
    Get
    Set
'Usage
Dim instance As SPSiteDataQuery
Dim value As String

value = instance.Webs

instance.Webs = value
public string Webs { get; set; }

Property value

Type: System.String
A string containing the inner XML that specifies the Web sites to include.

Remarks

The Webs property specifies which Web sites to include in the query. By default, the query considers only the Web site from which the GetSiteData method was invoked.

You can broaden the scope of the query by setting the Webs property to a string containing a Webs tag and a Scope attribute. Possible values of the Scope attribute include Recursive and SiteCollection.

<Webs Scope="Recursive" />

<Webs Scope="SiteCollection" />

When the Scope attribute is set to Recursive, the query considers the current Web site and all subsites of the current Web site.

When the Scope attribute is set to SiteCollection, the query considers all Web sites that are in the same site collection as the current Web site. Of the two attribute values, this is the more inclusive.

Examples

The following example is a console application that retrieves information about the size of every file in every document library in a site collection. The application then iterates through the data and prints totals at the library, Web site, and site collection levels.

Imports System
Imports System.Data
Imports Microsoft.SharePoint

Module ConsoleApp
   Sub Main()
      Using site As SPSite = New SPSite("http://localhost")
         Using web As SPWeb = site.OpenWeb()

            Dim query As SPSiteDataQuery = New SPSiteDataQuery()

            ' Query all Web sites in this site collection.
            query.Webs = "<Webs Scope='SiteCollection'>"

            ' Ask for document libraries.
            query.Lists = "<Lists BaseType='1' />"

            ' Get IDs for fields used in the query.
            Dim fileSizeId As String = SPBuiltInFieldId.File_x0020_Size.ToString("B")
            Dim fileSizeDisplayId As String = SPBuiltInFieldId.FileSizeDisplay.ToString("B")

            ' Select the records.
            query.Query = "<Where><Gt>"
            query.Query += "<FieldRef ID='" + fileSizeId + "' />"
            query.Query += "<Value Type='Number'>0</Value>"
            query.Query += "</Gt></Where>"

            ' Specify the view fields.
            query.ViewFields = "<FieldRef Name='" + fileSizeDisplayId + "' />"
            query.ViewFields += "<ProjectProperty Name='Title' />"
            query.ViewFields += "<ListProperty Name='Title' />"

            ' Submit the query.
            Dim results As DataTable = web.GetSiteData(query)

            ' Process the results.
            Dim webTitle As String = String.Empty
            Dim listTitle As String = String.Empty
            Dim listTotal, webTotal, grandTotal As Long

            For Each row As DataRow In results.Rows

               Dim curWeb As String = CType(row("ProjectProperty.Title"), String)
               Dim curList As String = CType(row("ListProperty.Title"), String)

               If webTitle <> curWeb Then
                  listTotal = PrintSubTotal(listTotal, listTitle)
                  listTitle = String.Empty

                  webTotal = PrintSubTotal(webTotal, webTitle)
                  webTitle = curWeb

                  Console.WriteLine(vbCrLf + "Web site: {0}", webTitle)
               End If

               If listTitle <> curList Then
                  listTotal = PrintSubTotal(listTotal, listTitle)
                  listTitle = curList
               End If

               ' Get the size of the current file.
               Dim fileSize As Integer = Convert.ToInt32(row(fileSizeDisplayId))

               ' Add it to the totals.
               listTotal += fileSize
               webTotal += fileSize
               grandTotal += fileSize

            Next

            listTotal = PrintSubTotal(listTotal, listTitle)
            webTotal = PrintSubTotal(webTotal, webTitle)
            Console.WriteLine(vbCrLf + "Grand total: {0}", grandTotal)

         End Using
      End Using
      Console.ReadLine()
   End Sub

   Function PrintSubTotal(ByVal total As Long, ByVal name As String) As Long
      If total <> 0 Then
         Console.WriteLine("  Total file size for {0} is {1}.", name, total)
      End If
      Return 0
   End Function

End Module
using System;
using System.Data;
using Microsoft.SharePoint;

namespace Test
{
   class ConsoleApp
   {
      static void Main(string[] args)
      {
         using (SPSite site = new SPSite("http://localhost"))
         {
            using (SPWeb web = site.OpenWeb())
            {
               SPSiteDataQuery query = new SPSiteDataQuery();

               // Query all Web sites in this site collection.
               query.Webs = "<Webs Scope=\"SiteCollection\">";

               // Ask for document libraries.
               query.Lists = "<Lists BaseType=\"1\" />";

               // Get IDs for fields used in the query.
               string fileSizeId = SPBuiltInFieldId.File_x0020_Size.ToString("B");
               string fileSizeDisplayId = SPBuiltInFieldId.FileSizeDisplay.ToString("B");

               // Select the records.
               query.Query = "<Where><Gt>";
               query.Query += "<FieldRef ID=\"" + fileSizeId + "\" />";
               query.Query += "<Value Type=\"Number\">0</Value>";
               query.Query += "</Gt></Where>";

               // Specify the view fields.
               query.ViewFields = "<FieldRef Name=\"" + fileSizeDisplayId + "\" />";
               query.ViewFields += "<ProjectProperty Name=\"Title\" />";
               query.ViewFields += "<ListProperty Name=\"Title\" />";

               // Submit the query.
               DataTable results = web.GetSiteData(query);

               // Process the results.
               string webTitle = string.Empty, listTitle = string.Empty;
               long listTotal = 0, webTotal = 0, grandTotal = 0;

               foreach (DataRow row in results.Rows)
               {
                  string curWeb = row["ProjectProperty.Title"] as string;
                  string curList = row["ListProperty.Title"] as string;

                  if (webTitle != curWeb)
                  {
                     listTotal = PrintSubTotal(listTotal, listTitle);
                     listTitle = string.Empty;

                     webTotal = PrintSubTotal(webTotal, webTitle);
                     webTitle = curWeb;

                     Console.WriteLine("\nWeb site: {0}", webTitle);
                  }

                  if (listTitle != curList)
                  {
                     listTotal = PrintSubTotal(listTotal, listTitle);
                     listTitle = curList;
                  }

                  // Get the size of the current file.
                  int fileSize = Convert.ToInt32(row[fileSizeDisplayId]);

                  // Add it to the totals.
                  listTotal += fileSize;
                  webTotal += fileSize;
                  grandTotal += fileSize;
               }

               listTotal = PrintSubTotal(listTotal, listTitle);
               webTotal = PrintSubTotal(webTotal, webTitle);
               Console.WriteLine("\nGrand total: {0}", grandTotal);

            }
         }
         Console.ReadLine();
      }

      private static long PrintSubTotal(long total, string name)
      {
         if (total != 0)
            Console.WriteLine("  Total file size for {0} is {1}.", name, total);
         return 0;
      }
   }
}

See also

Reference

SPSiteDataQuery class

SPSiteDataQuery members

Microsoft.SharePoint namespace