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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 228001 to 229000 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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