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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 102001 to 103000 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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