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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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