Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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