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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 149001 to 150000 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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