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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 226001 to 227000 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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