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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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