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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 110001 to 111000 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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