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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 83001 to 84000 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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