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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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