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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 128001 to 129000 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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