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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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