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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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