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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 112001 to 113000 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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