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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 273001 to 274000 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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