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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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