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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 261001 to 262000 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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