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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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