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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 81001 to 82000 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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