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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 92001 to 93000 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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