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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 92001 to 93000 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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