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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 115001 to 116000 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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