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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 78001 to 79000 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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