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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 87001 to 88000 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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