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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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