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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 105001 to 106000 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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