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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 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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