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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 269001 to 270000 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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