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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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