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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 112001 to 113000 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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