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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 119001 to 120000 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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