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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 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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