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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 83001 to 84000 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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