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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 88001 to 89000 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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