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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 108001 to 109000 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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