Occurs when a tab is selected.
Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms (in System.Windows.Forms.dll)
Visual Basic (Declaration)
Public Event Selected As TabControlEventHandler
Dim instance As TabControl
Dim handler As TabControlEventHandler
AddHandler instance.Selected, handler
public event TabControlEventHandler Selected
public:
event TabControlEventHandler^ Selected {
void add (TabControlEventHandler^ value);
void remove (TabControlEventHandler^ value);
}
JScript does not support events.
When the current tab changes in a TabControl, the following events occur in the following order.
These events let you perform tasks such as canceling a tab change if a TabPage is in an invalid state or updating the state of a newly displayed TabPage.
The current tab changes when the user clicks a tab, when you call the DeselectTab or SelectTab method, or when you change the value of the SelectedIndex or SelectedTab property.
The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the Selected event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox..::.Show with Console..::.WriteLine or appending the message to a multiline TextBox.
To run the example code, paste it into a project that contains an instance of type TabControl named TabControl1. Then ensure that the event handler is associated with the Selected event.
Private Sub TabControl1_Selected(sender as Object, e as TabControlEventArgs) _
Handles TabControl1.Selected
Dim messageBoxVB as New System.Text.StringBuilder()
messageBoxVB.AppendFormat("{0} = {1}", "TabPage", e.TabPage)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "TabPageIndex", e.TabPageIndex)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "Action", e.Action)
messageBoxVB.AppendLine()
MessageBox.Show(messageBoxVB.ToString(),"Selected Event")
End Sub
private void TabControl1_Selected(Object sender, TabControlEventArgs e) {
System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "TabPage", e.TabPage );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "TabPageIndex", e.TabPageIndex );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Action", e.Action );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "Selected Event" );
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0
Reference