Configurates C1.Web.Mvc.FlexGridBase<T>.ShowPlaceholders. Sets a value that determines whether the grid should use the column headers as placeholders when editing cells. This property only works with the grid's built-in editor. This property is not useful in IE.

'宣言
 
Public Overridable Function ShowPlaceholders( _
   ByVal value As System.Boolean _
) As TBuilder

public virtual TBuilder ShowPlaceholders( 
   System.bool value
)