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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 8001 to 9000 of 300000 Page: of 300 GoPage 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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