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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 287001 to 288000 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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