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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 59001 to 60000 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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