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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 73001 to 74000 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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