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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 9001 to 10000 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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