ערוך

שתף באמצעות

PropertyTabChangedEventArgs.OldTab Property

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Gets the old PropertyTab selected.

public:
 property System::Windows::Forms::Design::PropertyTab ^ OldTab { System::Windows::Forms::Design::PropertyTab ^ get(); };
public System.Windows.Forms.Design.PropertyTab OldTab { get; }
public System.Windows.Forms.Design.PropertyTab? OldTab { get; }
member this.OldTab : System.Windows.Forms.Design.PropertyTab
Public ReadOnly Property OldTab As PropertyTab

Property Value

PropertyTab

The old PropertyTab that was selected.

Examples

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the PropertyGrid.PropertyTabChanged 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 PropertyGrid named PropertyGrid1. Then ensure that the event handler is associated with the PropertyGrid.PropertyTabChanged event.

private void PropertyGrid1_PropertyTabChanged(Object sender, PropertyTabChangedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "OldTab", e.OldTab );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "NewTab", e.NewTab );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "PropertyTabChanged Event" );
}

Private Sub PropertyGrid1_PropertyTabChanged(sender as Object, e as PropertyTabChangedEventArgs) _ 
     Handles PropertyGrid1.PropertyTabChanged

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "OldTab", e.OldTab)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "NewTab", e.NewTab)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"PropertyTabChanged Event")

End Sub

Applies to