Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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