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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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