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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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