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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 185001 to 186000 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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