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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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