Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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