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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 288001 to 289000 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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