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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 100001 to 101000 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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