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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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