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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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