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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 93001 to 94000 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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