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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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