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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 285001 to 286000 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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