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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 38001 to 39000 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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