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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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