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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 225001 to 226000 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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