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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 160001 to 161000 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