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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 47001 to 48000 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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