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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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