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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 105001 to 106000 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="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ 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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