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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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