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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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