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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 66001 to 67000 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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