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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 112001 to 113000 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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