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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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