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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 147001 to 148000 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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