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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 286001 to 287000 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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