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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 54001 to 55000 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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