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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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