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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 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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