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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 115001 to 116000 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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