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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 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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