/// <summary>
 /// Validates if the range is affecting any of the existing range of layers
 /// and checks if the range has formula
 /// </summary>
 /// <param name="workSheet">Current active worksheet</param>
 /// <param name="range">Current range</param>
 /// <returns>Returns true if the layer is valid</returns>
 private bool ValidateLocalInWWTLayerData(_Worksheet workSheet, Range range)
 {
     bool isValid = false;
     if (ValidateAffectedMappedRange(workSheet, range))
     {
         if (range.ValidateFormula())
         {
             isValid = Ribbon.ShowWarningWithResult(Properties.Resources.RangeHasFormulaWarning);
         }
         else
         {
             isValid = true;
         }
     }
     return isValid;
 }