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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 122001 to 123000 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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