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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...71 72 73 74 75 76 77 78 79 80 ... Item 79001 to 80000 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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