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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 127001 to 128000 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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