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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 134001 to 135000 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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