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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 86001 to 87000 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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