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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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