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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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