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.NET and JavaScript UI Controls
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ActiveTab Property

Run time only property that determines which tab will show a focus rectangle.
Syntax
'Declaration
 
Public Property ActiveTab As UltraTab
public UltraTab ActiveTab {get; set;}
Example
The following sample code illustrates how to add tabs.

Imports Infragistics.Win
Imports Infragistics.Win.UltraWinTabs
Imports Infragistics.Win.UltraWinTabControl

Private Sub button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button8.Click

    ' Call BeginUpdate to prevent the display from
    ' refreshing as we add individual tabs.
    ' Note: This MUST be paired with a call to
    ' EndUpdate below.
    Me.ultraTabControl1.BeginUpdate()

    ' Specify that mnemonics will be supported. If so and
    ' there is an '&' in a tab's text, the following character
    ' will be treated as an accelerator (i.e. the tab will
    ' be activated when the user presses the 'Alt' key and 
    ' that character).
    Me.ultraTabControl1.UseMnemonics = DefaultableBoolean.True

    Dim tabAdded As UltraTab
    Dim tabs As UltraTabsCollection = Me.ultraTabControl1.Tabs

    ' Add a tab to the Tabs collection
    tabAdded = tabs.Add("options", "&Options")

    ' Setting the FixedWidth property will cause
    ' this tab to be displayed that size regardless
    ' of what is required to display its image and
    ' text
    tabAdded.FixedWidth = 80 ' pixels

    ' Create a new control
    Dim tb As New TextBox()
    tb.Location = New Point(20, 20)
    tb.Size = New Size(80, 20)

    ' Add the control to the tab's tab page
    tabAdded.TabPage.Controls.Add(tb)

    ' Continue to add tabs
    tabAdded = tabs.Add("general", "&General")
    tabAdded = tabs.Add("advanced", "Ad&vanced")

    ' Select the 'options' tab by setting the SelectedTab
    ' property. This will raise the ActiveTabChanging,
    ' ActiveTabChanged, SelectedTabChanging and 
    ' SelectedTabChanged events. It will also cause
    ' the 'options' tab TabPage to be made visible and
    ' the tab to scroll into view.
    Me.ultraTabControl1.SelectedTab = tabs("options")

    ' Activate the 'general' tab by setting the ActiveTab
    ' property. This will raise the ActiveTabChanging,
    ' and ActiveTabChanged events. It will also cause
    ' the tab to scroll into view but the only other
    ' visible change will be that a focus rect will
    ' be drawn around the tab if the control has focus. 
    Me.ultraTabControl1.ActiveTab = tabs("general")

    ' Give the tab control focus
    Me.ultraTabControl1.Focus()

    ' Call EndUpdate to allow the display to refresh
    Me.ultraTabControl1.EndUpdate()

End Sub
using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinTabs;
using Infragistics.Win.UltraWinTabControl;

private void button8_Click(object sender, System.EventArgs e)
{
	// Call BeginUpdate to prevent the display from
	// refreshing as we add individual tabs.
	// Note: This MUST be paired with a call to
	// EndUpdate below.
	this.ultraTabControl1.BeginUpdate();
		
	// Specify that mnemonics will be supported. If so and
	// there is an '&' in a tab's text, the following character
	// will be treated as an accelerator (i.e. the tab will
	// be activated when the user presses the 'Alt' key and 
	// that character).
	this.ultraTabControl1.UseMnemonics = DefaultableBoolean.True;

	UltraTab tabAdded;
	UltraTabsCollection tabs = this.ultraTabControl1.Tabs;

	// Add a tab to the Tabs collection
	tabAdded = tabs.Add("options", "&Options");

	// Setting the FixedWidth property will cause
	// this tab to be displayed that size regardless
	// of what is required to display its image and
	// text
	tabAdded.FixedWidth = 80; // pixels

	// Create a new control
	TextBox tb = new TextBox();
	tb.Location = new Point(20,20);
	tb.Size = new Size(80, 20);
	
	// Add the control to the tab's tab page
	tabAdded.TabPage.Controls.Add(tb );

	// Continue to add tabs
	tabAdded = tabs.Add("general", "&General");
	tabAdded = tabs.Add("advanced", "Ad&vanced");

	// Select the 'options' tab by setting the SelectedTab
	// property. This will raise the ActiveTabChanging,
	// ActiveTabChanged, SelectedTabChanging and 
	// SelectedTabChanged events. It will also cause
	// the 'options' tab TabPage to be made visible and
	// the tab to scroll into view.
	this.ultraTabControl1.SelectedTab = tabs["options"];

	// Activate the 'general' tab by setting the ActiveTab
	// property. This will raise the ActiveTabChanging,
	// and ActiveTabChanged events. It will also cause
	// the tab to scroll into view but the only other
	// visible change will be that a focus rect will
	// be drawn around the tab if the control has focus. 
	this.ultraTabControl1.ActiveTab = tabs["general"];

	// Give the tab control focus
	this.ultraTabControl1.Focus();

	// Call EndUpdate to allow the display to refresh
	this.ultraTabControl1.EndUpdate();

}
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