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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 86001 to 87000 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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