Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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