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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 121001 to 122000 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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