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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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