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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...51 52 53 54 55 56 57 58 59 60 ... Item 56001 to 57000 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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