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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 90001 to 91000 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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