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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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