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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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