ASP.NET Menu Control - OverlapHorizontal Property

Specifies the amount of horizontal overlap a submenu will have over its parent item. Default value is -5px.

[Visual Basic]
Public Property OverlapHorizontal As Unit

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

[C#]
myMenu.OverlapHorizontal = 0;

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