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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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