Consider the following for patient name:

(0008,0005) Specific Character Set  = ISO 2022 IR 13\ISO 2022 IR 87

(0010,0010) Patient's Name  =  ENDO^HISASHI=ｴﾝﾄﾞｳ^ﾋｻｼ=遠藤^久史

When the following is used:

Platform.Log(LogLevel.Info, "Patient's Name: " + msg.DataSet[DicomTags.PatientsName].GetString(0,""));

The result is:

2010-07-28 11:24:52,718 [3888] [10] INFO  - Patient's Name: ENDO^HISASHI=?????^???=??^??

Question marks replace the Ideographic Name and the Phonetic Name in the logging. These characters are preserved and sent across in the dataset during a C-Store.

Is there any method to retrieve these characters from the dataset for logging or display properly?

The file is read in using the following from disk. These are sample files provided to us from customers.

DF.Load(DicomReadOptions.Default | DicomReadOptions.ReadNonPart10Files);

One thing to note is if I do this:

TagValue = DAToWrite.GetString(0, "")

SWToWriteTo.WriteLine(TagValue);

where DAToWrite is a DicomAttribute object, and SWToWriteTo is a StreamWriter object, then the text output is correct and shows all characters properly.

whereas accessing the value in this way gives only question marks for unicode characters.

msg.DataSet[DicomTags.PatientsName].GetString(0,""));

I did some more checking and found if I use the value obtained from:

msg.DataSet[DicomTags.PatientsName].GetString(0,""));

and write it to a file using a streamwriter, then all charcters are correct. It appears that the problem would be with log4net, and using a statment like:

Platform.Log(LogLevel.Info, "Patient's Name: " + msg.DataSet[DicomTags.PatientsName].GetString(0,""));

I tried your suggestion and the results are the same. Any double byte characters are written to the log file as question marks.

 Jake,

I did some searching about this on the web. It looks like there's a way to set the encoding used in the text files via the Logging.config file. Ie, you can add something like this in your appender section of the config file:

<encoding value="utf-8" /> 

Could you check this out?  One other bit of followup, this is the site I found the reference to setting encoding.

Thanks,

Steve

Steve,

Sorry release time so we are busy. I reviewed the website and also did some more looking. I tried your suggestion of for encoding:

utf-8

as well as other I found like:

unicode, and unicodeFFFE

but none seem to produce proper character output. I can get rid of the question marks, but the are only replaced by other improper characters. For example:

2010-08-27 12:47:45,750 [4944] [5] INFO - Patient's Name: ｴﾝﾄﾞｳ ﾋｻｼ

 Jake,

I just did a test, when i add the encoding section into the log4net file, it works, when I don't have it, my log files have the ?? marks.  This is what the file I created looks like:

<?xml version="1.0" encoding="utf-8" ?>
<log4net>
<!-- Define some output appenders -->
    <appender name="RollingLogFileAppender" type="ClearCanvas.Common.log4net.RollingFileAppender, ClearCanvas.Common">
        <param name="File" value=".\\logs\\ClearCanvas.Test.log" />
        <param name="AppendToFile" value="true" />
        <param name="MaxSizeRollBackups" value="0" />
        <param name="MaximumFileSize" value="256KB" />
        <param name="RollingStyle" value="Size" />
        <param name="StaticLogFileName" value="true" />
        <layout type="log4net.Layout.PatternLayout">
            <param name="ConversionPattern" value="%d [%t] %-5p - %m%n" />
        </layout>
        <lockingModel type="ClearCanvas.Common.log4net.FileAppender+MutexLock, ClearCanvas.Common" />
        <encoding value="utf-8" /> 
    </appender>
<!-- Setup the root category, add the appenders and set the default level -->
    <root>
        <level value="INFO" />
        <appender-ref ref="RollingLogFileAppender" />
    </root>
    <logger name="NHibernate">
        <level value="WARN" />
    </logger>
</log4net

Can you check what you did again?

Steve

Steve,

I tried again using your example and you are correct it worked. The only difference I saw in mine was I had the line with:

encoding value="utf-8"

above the line with:

lockingModel type="ClearCanvas.Common..."

After making this changed it all worked. Thanks much for your help!