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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 85001 to 86000 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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