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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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