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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 47001 to 48000 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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