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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 129001 to 130000 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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