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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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