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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 122001 to 123000 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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