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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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