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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 115001 to 116000 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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