public void RemoveOperationRasterExecute()
 {
     if (_selectedOperationRaster != null)
     {
         OperationRasters.Remove(_selectedOperationRaster);
     }
 }
        public void AddOperationRasterExecute()
        {
            if (_selectedOperationRasterLayer == null)
            {
                return;
            }
            else
            {
                OperationRaster newOperationRaster = new OperationRaster();
                newOperationRaster.Raster_Name  = _selectedOperationRasterLayer.Name;
                newOperationRaster.Raster_Cost  = _operationRasterCost;
                newOperationRaster.Raster_Layer = _selectedOperationRasterLayer;

                OperationRasters.Add(newOperationRaster);
            }
        }