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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 113001 to 114000 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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