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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 118001 to 119000 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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