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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 80001 to 81000 of 300000 Page: of 300 GoPage 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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