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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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