Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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