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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 116001 to 117000 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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