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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 185001 to 186000 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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