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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 109001 to 110000 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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