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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 289001 to 290000 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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