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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 123001 to 124000 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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