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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 87001 to 88000 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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