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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 227001 to 228000 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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