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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 118001 to 119000 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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