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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 56001 to 57000 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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