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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 77001 to 78000 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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