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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 46001 to 47000 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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