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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 132001 to 133000 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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