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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 96001 to 97000 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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