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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 278001 to 279000 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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