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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 102001 to 103000 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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