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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 85001 to 86000 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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