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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 111001 to 112000 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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