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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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