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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 118001 to 119000 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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