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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 185001 to 186000 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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