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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 123001 to 124000 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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