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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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