Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

Isolate this demo as a stand-alone application

About this demo
C#
VB

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 PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<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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