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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 57001 to 58000 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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