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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 116001 to 117000 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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