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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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