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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 118001 to 119000 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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