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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 42001 to 43000 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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