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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 107001 to 108000 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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