/// <summary>
/// Writes converted reports into a .flxr file.
/// </summary>
/// <param name="cfi">The reports to be written.</param>
/// <param name="abort">OUT: if true, the user aborted operation.</param>
private void WriteFile(ConvertFileItem cfi, out bool abort)
{
abort = false;
confirm_file:
// Ask the user if a file with the target name already exists.
if (File.Exists(cfi.OutputFile))
{
string msg = string.Format("File \"{0}\" exists. Overwrite?", cfi.OutputFile);
switch (MessageBox.Show(this, msg, "Xml2FlxrConverter", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question))
{
case DialogResult.Yes:
abort = false;
break;
case DialogResult.No:
using (var sfd = new SaveFileDialog())
{
sfd.Filter = "FlexReport Report Definition Files (*.flxr)|*.flxr|All Files (*.*)|*.*";
sfd.OverwritePrompt = false;
sfd.FileName = cfi.OutputFile;
if (sfd.ShowDialog(this) == DialogResult.Cancel)
{
abort = true;
return;
}
cfi.OutputFile = sfd.FileName;
goto confirm_file;
}
case DialogResult.Cancel:
abort = true;
return;
default:
System.Diagnostics.Debug.Assert(false);
abort = true;
return;
}
}
// Write the .flxr file.
// We first write the reports into a memory stream,
// then if successfull write the stream into the disk file.
// This minimizes the chance of corrupted files.
try
{
using (MemoryStream ms = new MemoryStream())
using (XmlTextWriter w = new XmlTextWriter(ms, null)) // (null encoding uses utf-8 and suppresses it from xml header)
{
w.Formatting = Formatting.Indented;
w.Indentation = 2;
w.WriteStartDocument();
// write all reports to it
w.WriteStartElement("Reports");
w.WriteStartElement("FormatVersion");
w.WriteString(C1FlexReport.FormatVersion.ToString());
w.WriteEndElement();
foreach (var cr in cfi.ConvertReports)
{
if (cr.Report != null)
{
cr.Report.Save(w, _embedImages, false);
}
else
{
LogLine(string.Format("Skipped failed conversion."));
}
}
w.WriteEndElement();
w.Flush();
// Copy content from memory stream to physical file:
using (FileStream fs = new FileStream(cfi.OutputFile, FileMode.Create))
{
ms.Seek(0, SeekOrigin.Begin);
ms.WriteTo(fs);
fs.Flush();
fs.Close();
}
w.Close();
ms.Close();
}
LogLine(string.Format("Written \"{0}\"", cfi.OutputFile));
}
catch (Exception ex)
{
string msg = string.Format("Failed to write \"{0}\": {1}", cfi.OutputFile, ex.Message);
LogLine(msg);
cfi.Error = msg;
}
}
/// <summary>
/// Converts a single file which may contain multiple reports.
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private ConvertFileItem ConvertFile(string fileName)
{
// Create a ConvertFileItem object which will hold the info about the file being converted.
// If successuflly converted, that object will be passed to the method writing the .flxr file.
ConvertFileItem convertFile = new ConvertFileItem();
convertFile.InputFile = fileName;
convertFile.OutputFile = Path.ChangeExtension(fileName, ".flxr");
if (!string.IsNullOrEmpty(_txtOutputFolder.Text))
{
convertFile.OutputFile = Path.Combine(_txtOutputFolder.Text, Path.GetFileName(convertFile.OutputFile));
}
// load XML document
XmlDocument doc = new XmlDocument();
doc.PreserveWhitespace = true;
try
{
LogLine("Converting " + fileName + "...");
doc.Load(fileName);
}
catch (Exception ex)
{
string msg = string.Format("Could not load file: {0}.", ex.Message);
LogLine(msg);
convertFile.Error = msg;
LogLine("Converting " + fileName + " aborted.");
return(convertFile);
}
// Get the list of reports in the file.
string[] reports = C1FlexReport.GetReportList(doc);
if (reports == null || reports.Length == 0)
{
string msg = "No reports found in file.";
LogLine(msg);
convertFile.Error = msg;
LogLine("Converting " + fileName + " aborted.");
return(convertFile);
}
// Loop through reports, loading them into C1FlexReport instances, thus performing the conversion.
int cnt = reports.Length;
for (int i = 0; i < cnt; ++i)
{
ConvertReportItem convertReport = new ConvertReportItem();
C1FlexReport flexReport = new C1FlexReport();
try
{
bool converted;
flexReport.Load(doc, reports[i], out converted);
convertReport.Report = flexReport;
LogLine(string.Format(" Converted {0}", flexReport.ReportName));
}
catch (Exception x)
{
string msg = string.Format("Failed to convert \"{0}\": {1}", reports[i], x.Message);
LogLine(" " + msg);
convertReport.Error = msg;
}
convertFile.ConvertReports.Add(convertReport);
}
// Done. The convertFile object contains the list of converted reports.
LogLine(fileName + " done.");
return(convertFile);
}
