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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 221001 to 222000 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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