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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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