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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 68001 to 69000 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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