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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 58001 to 59000 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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