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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 112001 to 113000 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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