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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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