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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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