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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 68001 to 69000 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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