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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 261001 to 262000 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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