TabControl.Deselected Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Occurs when a tab is deselected.
public:
event System::Windows::Forms::TabControlEventHandler ^ Deselected;public event System.Windows.Forms.TabControlEventHandler Deselected;public event System.Windows.Forms.TabControlEventHandler? Deselected;member this.Deselected : System.Windows.Forms.TabControlEventHandler Public Custom Event Deselected As TabControlEventHandler Event Type
Examples
The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the Deselected 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 Deselected event.
private void TabControl1_Deselected(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(), "Deselected Event" );
}
Private Sub TabControl1_Deselected(sender as Object, e as TabControlEventArgs) _
Handles TabControl1.Deselected
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(),"Deselected Event")
End Sub
Remarks
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.
