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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 108001 to 109000 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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