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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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