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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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