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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 114001 to 115000 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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