Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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