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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

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>
<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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