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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 45001 to 46000 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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