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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 106001 to 107000 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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