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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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