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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 119001 to 120000 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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