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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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