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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 54001 to 55000 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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