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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 114001 to 115000 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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