Sets the value of the next class within the current element in the current segment.
int WriteComponentString(const QString& qsValue);
Use the WriteComponentString method to specify a value for an individual component within a composite data element.
This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)