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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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