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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 156001 to 157000 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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