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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 60001 to 61000 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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