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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 105001 to 106000 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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