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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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