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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 117001 to 118000 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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