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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 185001 to 186000 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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