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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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