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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 264001 to 265000 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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