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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 215001 to 216000 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