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.NET and JavaScript UI Controls
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AllowClosing Property

Gets or sets the value indicating whether the tab can be closed.
Syntax
'Declaration
 
Public Property AllowClosing As Infragistics.Win.DefaultableBoolean
public Infragistics.Win.DefaultableBoolean AllowClosing {get; set;}
Exceptions
ExceptionDescription
System.ComponentModel.InvalidEnumArgumentExceptionThe value assigned is not defined in the Infragistics.Win.DefaultableBoolean enumeration.
Remarks

If this property is Default, the value of AllowTabClosing will be used to determine if the tab can close.

Example
The following code demonstrates how to control the behavior of a close button within a tab.

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinTabs

' Place close buttons in all the tabs of the tab control.
Me.UltraTabControl1.CloseButtonLocation = TabCloseButtonLocation.Tab

' Disable the close button in the first tab.
' This will also prevent middle clicking on the tab from closing it.
Me.UltraTabControl1.Tabs(0).AllowClosing = Infragistics.Win.DefaultableBoolean.False

' The second tab's close button should come before the image and text of the tab.
Me.UltraTabControl1.Tabs(1).CloseButtonAlignment = TabCloseButtonAlignment.BeforeContent

' The third tab should only display a close button when it is the selected tab.
Me.UltraTabControl1.Tabs(2).CloseButtonVisibility = TabCloseButtonVisibility.WhenSelected
using System.Windows.Forms;
using Infragistics.Win;
using Infragistics.Win.UltraWinTabs;

// Place close buttons in all the tabs of the tab control.
this.ultraTabControl1.CloseButtonLocation = TabCloseButtonLocation.Tab;

// Disable the close button in the first tab.
// This will also prevent middle clicking on the tab from closing it.
this.ultraTabControl1.Tabs[ 0 ].AllowClosing = DefaultableBoolean.False;

// The second tab's close button should come before the image and text of the tab.
this.ultraTabControl1.Tabs[ 1 ].CloseButtonAlignment = TabCloseButtonAlignment.BeforeContent;

// The third tab should only display a close button when it is the selected tab.
this.ultraTabControl1.Tabs[ 2 ].CloseButtonVisibility = TabCloseButtonVisibility.WhenSelected;
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also