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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 149001 to 150000 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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