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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 103001 to 104000 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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