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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 6001 to 7000 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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