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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

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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