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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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