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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page 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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