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CrossListQueryCache Class

SharePoint 2007

Manages the cache for the Cross List Query. This class cannot be inherited.

Namespace: Microsoft.SharePoint.Publishing
Assembly: Microsoft.SharePoint.Publishing (in microsoft.sharepoint.publishing.dll)

Syntax

[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel=true)] 
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel=true)] 
public sealed class CrossListQueryCache

Remarks

This class caches data that is returned from the Cross List Query and applies audience targeting to the result set that is returned by the VersionCrossListQueryInfo property.

Example

The following example code demonstrates one way to use the CrossListQueryCache object, properties, and methods. This code views data in the CrossListQueryCache object, gets the data, and stores the data in a new Content Query Web Part for viewing.

using System;
using System.Globalization;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Collections.Generic;
using Microsoft.SharePoint;
using Microsoft.SharePoint.WebControls;
using Microsoft.SharePoint.WebPartPages;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.ApplicationPages;
using Microsoft.SharePoint.Publishing.WebControls;
using Microsoft.SharePoint.Publishing;

namespace CodeSampleNamespace
{
    public class CodeSample : LayoutsPageBase
    {
        protected System.Web.UI.WebControls.Panel panel;

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

// CrossListQueryExample
            {
                CrossListQueryInfo crossListInfo = new CrossListQueryInfo();
                crossListInfo.ViewFields = "<FieldRef Name=\"Title\" Nullable=\"True\" Type=\"Text\"/><FieldRef Name=\"FileRef\"/>";
                crossListInfo.Query = "<Where><And><Eq><FieldRef Name=\"File_x0020_Type\"/><Value Type=\"Text\">aspx</Value></Eq>" +
                                      "<Neq><FieldRef Name=\"ContentType\"/><Value Type=\"String\">Article Page</Value></Neq></And></Where>" +
                                      "<OrderBy><FieldRef Name=\"Created\" Type=\"DateTime\" Ascending=\"True\"/></OrderBy>";
                crossListInfo.RowLimit = 15;
                crossListInfo.Webs = "<Webs Scope=\"Recursive\" />";
                crossListInfo.Lists = "<Lists ServerTemplate=\"850\">";
                crossListInfo.WebUrl = "/";

                CrossListQueryCache xlqCache = new CrossListQueryCache(crossListInfo);
                DataTable results = xlqCache.GetSiteData(SPContext.Current.Site);


                // Store the data in a new Content Query Web Part to display the results.
                ContentByQueryWebPart cbq = new ContentByQueryWebPart();
                cbq.Data = results;
                panel.Controls.Add(cbq);
               }            
           } 

   }            
}

Inheritance Hierarchy

System.Object
Microsoft.SharePoint.Publishing.CrossListQueryCache

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Reference

CrossListQueryCache Members
Microsoft.SharePoint.Publishing Namespace
CrossListQueryCache
CrossListQueryCache
ContextUrl
GetSiteData

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