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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 3001 to 4000 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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