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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 77001 to 78000 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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