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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 128001 to 129000 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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