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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 126001 to 127000 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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