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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 117001 to 118000 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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