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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...31 32 33 34 35 36 37 38 39 40 ... Item 36001 to 37000 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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