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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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