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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 106001 to 107000 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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