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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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