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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...11 12 13 14 15 16 17 18 19 20 ... Item 16001 to 17000 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="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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