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

Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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