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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 80001 to 81000 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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