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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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