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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 280001 to 281000 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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