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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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

<%@ 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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