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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 267001 to 268000 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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