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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...21 22 23 24 25 26 27 28 29 30 ... Item 23001 to 24000 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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