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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 108001 to 109000 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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