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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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