public String GetErrorDescription(int LcId)
{
String errorDesc;
errorInfo.GetErrorDescription(Convert.ToUInt32(LcId), out errorDesc);
return(errorDesc);
}
internal BackgroundCopyException(IBackgroundCopyError err)
{
const uint lang = 0x1; // LANG_NEUTRAL, SUBLANG_DEFAULT
err.GetError(out ctx, out code);
try { err.GetErrorContextDescription(lang, out ctxDesc); }
catch { ctxDesc = unkErr; }
try { err.GetErrorDescription(lang, out errDesc); }
catch { errDesc = unkErr; }
err.GetProtocol(out protocol);
err.GetFile(out iVal);
}
internal BackgroundCopyException(IBackgroundCopyError err)
{
const uint lang = 0x1; // LANG_NEUTRAL, SUBLANG_DEFAULT
err.GetError(out ctx, out code);
try { ctxDesc = err.GetErrorContextDescription(lang); }
catch { ctxDesc = SafeCoTaskMemString.Null; }
try { errDesc = err.GetErrorDescription(lang); }
catch { errDesc = SafeCoTaskMemString.Null; }
try { protocol = err.GetProtocol(); }
catch { protocol = SafeCoTaskMemString.Null; }
iVal = err.GetFile();
}
/// <summary>
/// Centralizes all chores related to stopping and cancelling a copy job, and getting back
/// from BITS the errors incurred during the job.
/// </summary>
/// <param name="copyJob">reference to the copy job object (not job id)</param>
/// <param name="errMessage">a cumulative error message passed by reference so
/// that additions can be made</param>
private void HandleDownloadErrorCancelJob(
IBackgroundCopyJob copyJob,
ref string errMessage)
{
string singleError = "";
string jobDesc = "";
string jobName = "";
Guid jobID = Guid.Empty;
IBackgroundCopyError copyError = null;
try
{
// check if job is null; don't try to clean up null references!
if (null != copyJob)
{
// get information about this job for reporting the error
copyJob.GetDescription(out jobDesc);
copyJob.GetDisplayName(out jobName);
copyJob.GetId(out jobID);
// find out what the error was
copyJob.GetError(out copyError);
// use the culture id specified in RESX to tell COM which culture to return err message in:
copyError.GetErrorDescription((uint)CULTURE_ID_FOR_COM, out singleError);
// add error to our "stack" of errors:
errMessage += singleError + Environment.NewLine;
// notify BITS that we consider this job a loss, forget about it:
copyJob.Cancel();
// remove job from collection
RemoveCopyJobEntry(jobID);
// log error, but don't throw here; let dnldmgr take care of error
// NOTE that errMessage is used cumulatively for full track of problem
errMessage = ApplicationUpdateManager.TraceWrite("[BITSDownloader]", "RES_EXCEPTION_BITSBackgroundCopyError", jobID, jobName, jobDesc, errMessage);
ExceptionManager.Publish(new Exception(errMessage));
}
}
finally
{
if (null != copyError)
{
Marshal.ReleaseComObject(copyError);
copyError = null;
}
}
}
/// <summary>
/// Creates an exception with the BITS error reference and a language id.
/// </summary>
/// <param name="error">The BITS error reference.</param>
/// <param name="langID">The language Id.</param>
internal BitsDownloadErrorException(IBackgroundCopyError error, uint langID)
{
IBackgroundCopyFile file;
error.GetError(out contextForError, out errorCode);
error.GetErrorContextDescription(langID, out contextDescription);
error.GetErrorDescription(langID, out errorDescription);
error.GetFile(out file);
error.GetProtocol(out protocol);
file.GetLocalName(out fileLocalName);
file.GetRemoteName(out fileRemoteName);
}
private string FormatError(IBackgroundCopyError error)
{
string contextDescription;
string errorDescription;
error.GetErrorContextDescription(1033, out contextDescription);
error.GetErrorDescription(1033, out errorDescription);
/*
* Additional info we might want to add to the status
*
* BG_ERROR_CONTEXT contextForError;
* int errorCode;
* IBackgroundCopyFile file;
* string protocol;
* string fileLocalName;
* string fileRemoteName;
*
* error.GetError(out contextForError, out errorCode);
* error.GetFile(out file);
* error.GetProtocol(out protocol);
*
* file.GetLocalName(out fileLocalName);
* file.GetRemoteName(out fileRemoteName);
*
*/
var message = errorDescription;
if (!string.IsNullOrEmpty(contextDescription))
{
message += Environment.NewLine + contextDescription;
}
return(message);
}
