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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 53001 to 54000 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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