public static bool OpenEDIFile(EDIFileStream EdiFileStream)
{
if (FileReader != null)
{
FileReader.Dispose(); // if we're opening a 2nd (or more) file, close the stream from the previous one
}
FileReader = EdiFileStream;
//Read the first 106 bytes, and validate that it at least looks like a 5010 X12 EDI file
string Envelope = String.Empty;
CurrentPageNumber = 0;
try
{
Envelope = FileReader.ReadEnvelope();
//Check for X12 Control Segment Name
if (String.IsNullOrEmpty(Envelope) || Envelope.Length != 106 || Envelope.Substring(0, 3) != "ISA")
{
throw new ArgumentException("File is not an X12 EDI file or file is missing control segment.");
}
TotalPages = FileReader.LoadSegmentOffset();
return(true);
}
catch (ArgumentException e)
{
return(false);
}
}
private void Open_File(object sender, RoutedEventArgs e)
{
var picker = new OpenFileDialog();
if (picker.ShowDialog() == true)
{
Mouse.OverrideCursor = Cursors.Wait;
SearchResults.Text = String.Empty;
FileName.Text = $"File Open: {picker.FileName}";
var fileStream = File.OpenRead(picker.FileName);
var ediStream = new EDIFileStream(fileStream);
bool fileOk = FileUtils.OpenEDIFile(ediStream);
if (!fileOk)
{
Mouse.OverrideCursor = null;
MessageBox.Show("Error: File is not an X12 EDI file. Please try a different file.");
}
else
{
TotalPages.Text = $"Total Pages: {Convert.ToString(FileUtils.TotalPages)}";
FileContent.Text = FileUtils.LoadPage(FileUtils.NavigationType.Next);
CurrentPage.Text = $"Current Page: {Convert.ToString(FileUtils.CurrentPageNumber)}";
UpdateLineNumbers();
Mouse.OverrideCursor = null;
}
}
}