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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 84001 to 85000 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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