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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 121001 to 122000 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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