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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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