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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 113001 to 114000 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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