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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 100001 to 101000 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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