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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 78001 to 79000 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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