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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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