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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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