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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 43001 to 44000 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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