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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 48001 to 49000 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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