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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 71001 to 72000 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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