ASP.NET Menu Control - OverlapVertical Property

Specifies the amount of vertical overlap a submenu will have over its parent first level horizontal menu. Default value is -4px.

[Visual Basic]
Public Property OverlapVertical As Unit

[C#]
public System.Web.UI.WebControls.Unit OverlapVertical {get; set;}

[C#]
myMenu.OverlapVertical = 0;

[Visual Basic]
myMenu.OverlapVertical = New System.Web.UI.WebControls.Unit(0)