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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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