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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 104001 to 105000 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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