New to Telerik UI for ASP.NET AJAX? Download free 30-day trial

Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Marketing Manager	Antonio Moreno	Italy	1 2 3 4 5
2	Marketing Manager	Pascale Cartrain	England	1 2 3 4 5
3	Sales Representative	Hanna Moos	Austria	1 2 3 4 5
4	Owner	Antonio Moreno	Spain	1 2 3 4 5
5	Sales Consultant	Patricio Simpson	Austria	1 2 3 4 5
6	Owner	Antonio Moreno	Spain	1 2 3 4 5
7	Sales Agent	Howard Snyder	Bulgaria	1 2 3 4 5
8	Sales Manager	Patricio Simpson	Germany	1 2 3 4 5
9	Marketing Manager	Georg Pipps	Bulgaria	1 2 3 4 5
10	Sales Agent	Paul Henriot	Brazil	1 2 3 4 5
11	Accounting Manager	Patricio Simpson	USA	1 2 3 4 5
12	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
13	Sales Consultant	Howard Snyder	Bulgaria	1 2 3 4 5
14	Owner	Elizabeth Lincoln	Brazil	1 2 3 4 5
15	Sales Representative	Hanna Moos	Spain	1 2 3 4 5
16	Sales Manager	Antonio Moreno	Brazil	1 2 3 4 5
17	Sales Representative	Howard Snyder	Germany	1 2 3 4 5
18	Sales Consultant	Paul Henriot	Spain	1 2 3 4 5
19	Accounting Manager	Paul Henriot	England	1 2 3 4 5
20	Marketing Assistant	Hanna Moos	Germany	1 2 3 4 5
21	Marketing Manager	Hanna Moos	USA	1 2 3 4 5
22	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
23	Accountant	Hanna Moos	Italy	1 2 3 4 5
24	Sales Manager	Jaime Yorres	Spain	1 2 3 4 5
25	Accountant	Elizabeth Lincoln	USA	1 2 3 4 5
26	Sales Consultant	Georg Pipps	Spain	1 2 3 4 5
27	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5
28	Sales Representative	Patricio Simpson	Germany	1 2 3 4 5
29	Accountant	Hanna Moos	Brazil	1 2 3 4 5
30	Owner	Matti Karttunen	Bulgaria	1 2 3 4 5
31	Sales Manager	Jaime Yorres	Italy	1 2 3 4 5
32	Sales Associate	Antonio Moreno	Bulgaria	1 2 3 4 5
33	Marketing Assistant	Jaime Yorres	Spain	1 2 3 4 5
34	Accountant	Georg Pipps	USA	1 2 3 4 5
35	Owner	Patricio Simpson	Bulgaria	1 2 3 4 5
36	Sales Agent	Matti Karttunen	Italy	1 2 3 4 5
37	Sales Consultant	Jaime Yorres	Italy	1 2 3 4 5
38	Marketing Assistant	Jaime Yorres	Spain	1 2 3 4 5
39	Marketing Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5
40	Sales Associate	Antonio Moreno	England	1 2 3 4 5
41	Marketing Manager	Pascale Cartrain	Germany	1 2 3 4 5
42	Sales Manager	Antonio Moreno	Spain	1 2 3 4 5
43	Marketing Manager	Patricio Simpson	Austria	1 2 3 4 5
44	Marketing Assistant	Elizabeth Lincoln	Spain	1 2 3 4 5
45	Sales Consultant	Jaime Yorres	USA	1 2 3 4 5
46	Accountant	Paul Henriot	Spain	1 2 3 4 5
47	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
48	Sales Agent	Jaime Yorres	Argentina	1 2 3 4 5
49	Marketing Assistant	Matti Karttunen	Spain	1 2 3 4 5
50	Sales Associate	Howard Snyder	Bulgaria	1 2 3 4 5
51	Accountant	Pascale Cartrain	Brazil	1 2 3 4 5
52	Accounting Manager	Pascale Cartrain	Italy	1 2 3 4 5
53	Accounting Manager	Matti Karttunen	France	1 2 3 4 5
54	Accounting Manager	Elizabeth Lincoln	Brazil	1 2 3 4 5
55	Sales Manager	Pascale Cartrain	Argentina	1 2 3 4 5
56	Owner	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
57	Sales Agent	Howard Snyder	Bulgaria	1 2 3 4 5
58	Sales Associate	Hanna Moos	France	1 2 3 4 5
59	Sales Agent	Matti Karttunen	Brazil	1 2 3 4 5
60	Accountant	Antonio Moreno	Germany	1 2 3 4 5
61	Marketing Assistant	Antonio Moreno	Austria	1 2 3 4 5
62	Marketing Assistant	Jaime Yorres	Bulgaria	1 2 3 4 5
63	Sales Agent	Matti Karttunen	Austria	1 2 3 4 5
64	Accounting Manager	Georg Pipps	Brazil	1 2 3 4 5
65	Marketing Assistant	Matti Karttunen	Austria	1 2 3 4 5
66	Sales Associate	Jaime Yorres	Brazil	1 2 3 4 5
67	Marketing Assistant	Matti Karttunen	Brazil	1 2 3 4 5
68	Accountant	Howard Snyder	Brazil	1 2 3 4 5
69	Accounting Manager	Patricio Simpson	Argentina	1 2 3 4 5
70	Accounting Manager	Elizabeth Lincoln	USA	1 2 3 4 5
71	Marketing Manager	Jaime Yorres	Bulgaria	1 2 3 4 5
72	Marketing Manager	Howard Snyder	USA	1 2 3 4 5
73	Sales Consultant	Georg Pipps	Bulgaria	1 2 3 4 5
74	Sales Associate	Hanna Moos	Bulgaria	1 2 3 4 5
75	Accounting Manager	Jaime Yorres	France	1 2 3 4 5
76	Marketing Assistant	Jaime Yorres	Argentina	1 2 3 4 5
77	Sales Associate	Paul Henriot	Bulgaria	1 2 3 4 5
78	Marketing Assistant	Jaime Yorres	Bulgaria	1 2 3 4 5
79	Sales Representative	Georg Pipps	Spain	1 2 3 4 5
80	Marketing Manager	Elizabeth Lincoln	Austria	1 2 3 4 5
81	Marketing Manager	Pascale Cartrain	England	1 2 3 4 5
82	Marketing Manager	Paul Henriot	Brazil	1 2 3 4 5
83	Accountant	Georg Pipps	Brazil	1 2 3 4 5
84	Marketing Assistant	Paul Henriot	Brazil	1 2 3 4 5
85	Accounting Manager	Matti Karttunen	Italy	1 2 3 4 5
86	Sales Manager	Jaime Yorres	USA	1 2 3 4 5
87	Marketing Manager	Howard Snyder	Argentina	1 2 3 4 5
88	Accounting Manager	Howard Snyder	Bulgaria	1 2 3 4 5
89	Accounting Manager	Matti Karttunen	France	1 2 3 4 5
90	Marketing Assistant	Patricio Simpson	Spain	1 2 3 4 5
91	Owner	Elizabeth Lincoln	Argentina	1 2 3 4 5
92	Owner	Howard Snyder	Brazil	1 2 3 4 5
93	Sales Associate	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
94	Sales Manager	Georg Pipps	France	1 2 3 4 5
95	Marketing Manager	Jaime Yorres	USA	1 2 3 4 5
96	Marketing Manager	Pascale Cartrain	Italy	1 2 3 4 5
97	Owner	Jaime Yorres	Brazil	1 2 3 4 5
98	Marketing Assistant	Patricio Simpson	Spain	1 2 3 4 5
99	Sales Associate	Paul Henriot	Argentina	1 2 3 4 5
100	Sales Manager	Pascale Cartrain	Bulgaria	1 2 3 4 5


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 of 300000 Page: of 300 GoPage size:

Sort Ascending
Sort Descending
Clear Sorting
Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

Support & Learning Resources

Find Assistance

Submit a support ticket if you have an active license or trial
Post in the forum if you don't have access to support

Virtualization

Related Resources

Support & Learning Resources

Find Assistance