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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page 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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