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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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