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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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