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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 80001 to 81000 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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