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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...81 82 83 84 85 86 87 88 89 90 ... Item 86001 to 87000 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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