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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 120001 to 121000 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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