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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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