Grid - Virtualization

ID	Contact Title	Contact Name	Country	Rating


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