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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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