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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 53001 to 54000 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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