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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 92001 to 93000 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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