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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...11 12 13 14 15 16 17 18 19 20 ... Item 13001 to 14000 of 300000 Page: of 300 GoPage size:

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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>

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