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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...21 22 23 24 25 26 27 28 29 30 ... Item 27001 to 28000 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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