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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 82001 to 83000 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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