Question

I use many transaction in my project : Like this :

bool retVal = true;
string errorCode = string.Empty;
try
 {
   result = RecordsDal.ReadAllDoneRecords();
   retVal = Export(result, out errorCode);
 }
catch
 {
    Errorlog(errorCode, ex.Message);
    MessageBox.Show("Error Export "+ Environment.NewLine + ex.Message, "", MessageBoxButtons.OK, MessageBoxIcon.Stop);
    return false;            
 }

the export :

    public static bool Export(List<Record> result,  out string error)
    {
        bool retVal = true;
        error = "sqlCeConnection";
        SqlCeConnection sqlCeConnection = null;
        error = "Initializiong";
        SqlTransaction trans = null;
        try
        {
           error = "Begin";
           .......
           error = "End";
        }
        catch (Exception ex)
        {
            trans.Rollback();
            retVal = false;                
        }
    }

and I use an error logs to Know where I have a problem,

the application work fine in many client but I install the app in the new one and I have an error with the file log have the code error and the exception ex.Message

Initializing : Object reference not set to an instance of an object

the error in this line : SqlTransaction trans = null;

sorry, I found the real problem, the sqlCe not installed, and there’s ex.innerexception = null the the log have save this error not the real one

Answer 1

sorry, I found the real problem, the sqlCe not installed, and there’s ex.innerexception = null the the log have save this error not the real one