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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 113001 to 114000 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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