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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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