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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 107001 to 108000 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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