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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 106001 to 107000 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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