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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...21 22 23 24 25 26 27 28 29 30 ... Item 24001 to 25000 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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