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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 78001 to 79000 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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