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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 259001 to 260000 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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