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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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