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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 122001 to 123000 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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