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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 108001 to 109000 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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