Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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