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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 81001 to 82000 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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