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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 2001 to 3000 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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