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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 101001 to 102000 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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