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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 109001 to 110000 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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