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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 220001 to 221000 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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