NpgsqlParameterCollection.Add Method (String, NpgsqlDbType, Int32)
      
      [This is preliminary documentation and subject to change.]
     
    
       Adds a NpgsqlParameter to the NpgsqlParameterCollection with the parameter name, the data type, and the column length. 
      
      
      Parameters
      
        - 
          parameterName
        
- The name of the parameter.
- 
          parameterType
        
- One of the DbType values.
- 
          size
        
- The length of the column.
Return Value
      The index of the new NpgsqlParameter object.
      See Also
      
        NpgsqlParameterCollection Class | Npgsql Namespace | NpgsqlParameterCollection.Add Overload List