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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 111001 to 112000 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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