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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 257001 to 258000 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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