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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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