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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 63001 to 64000 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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