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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 113001 to 114000 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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