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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 59001 to 60000 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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