Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

Isolate this demo as a stand-alone application

About this demo
C#
VB

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 PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<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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