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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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