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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 74001 to 75000 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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