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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 114001 to 115000 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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