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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 283001 to 284000 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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