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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 110001 to 111000 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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