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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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