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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 44001 to 45000 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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