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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 89001 to 90000 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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