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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...11 12 13 14 15 16 17 18 19 20 ... Item 19001 to 20000 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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