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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


1 2 3 4 5 6 7 8 9 10 ... Item 1 to 1000 of 300000 Page: of 300 Page 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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