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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 278001 to 279000 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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