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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 51001 to 52000 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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