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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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