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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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