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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 53001 to 54000 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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