SharpSvn GetFileVersions and GetContentStream throws InvalidOperationException

Question

I'm trying to use SharpSvn to get the contents of a file at a particular revision. I have the following code:

var svnClient = new SvnClient();
var revisionInfo = new SvnFileVersionsArgs
    {
        Start = 80088,
        End = 80093
    };

Collection<SvnFileVersionEventArgs> fileVersions;
svnClient.GetFileVersions(
    new SvnUriTarget("https://DbDiff.svn.codeplex.com/svn/DbDiffCommon/DataAccess/SqlCommand11.xml"), 
    revisionInfo,
    out fileVersions);

var stream =  fileVersions[0].GetContentStream();

However on the last line I'm getting the following exception:

System.InvalidOperationException was unhandled
  Message=This method can only be invoked from the eventhandler handling this eventargs instance
  Source=SharpSvn
  StackTrace:
       at SharpSvn.SvnFileVersionEventArgs.GetContentStream(SvnFileVersionWriteArgs args) in g:\dist\src\sharpsvn\commands\fileversions.cpp:line 545
       at SharpSvn.SvnFileVersionEventArgs.GetContentStream() in g:\dist\src\sharpsvn\commands\fileversions.cpp:line 534
       at SharpSvnFileVersions.Program.Main(String[] args) in c:\temp\SharpSvnFileVersions\Program.cs:line 29
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

How should I go about getting the contents of the file at each revision?

Answer 1

Looks like I can use SvnClient.Write() to grab the file contents:

SvnClient svnClient = new SvnClient();
SvnUriTarget target = new SvnUriTarget("https://DbDiff.svn.codeplex.com/svn/DbDiffCommon/DataAccess/SqlCommand11.xml", 80088);

Stream stream = new MemoryStream();
svnClient.Write(target, stream);