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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 119001 to 120000 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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