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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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