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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 285001 to 286000 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