Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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