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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 119001 to 120000 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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