public static void Start(string sheetName = "")
{
CTPManager.Save();
var _excel = new Application(null, ExcelDna.Integration.ExcelDnaUtil.Application);
var activeSheet = sheetName == "" ? (Worksheet)_excel.ActiveSheet : (Worksheet)_excel.ActiveWorkbook.Worksheets[sheetName];
string sourceCode = PythonSourceManager.GetSourceCode(activeSheet.Parent as Workbook, activeSheet.Name);
//remove non-printable characters
sourceCode = Regex.Replace(sourceCode, @"[^ -~\n\t]+", " ");
if (sourceCode.Length > 0)
{
var settings = new CustomXML.UserSettings(_excel.ActiveWorkbook);
var workbookPath = "\"" + _excel.ActiveWorkbook.Path.Replace("\\", "\\\\") + "\"";
var expandedSourceCode = "workbookPath=" + workbookPath
+ "\nimport os, pandas\nif(len(workbookPath)>1): os.chdir(workbookPath)\nresult = pandas.DataFrame()\n"
+ settings.prepend + "\n"
+ sourceCode
+ "\nif(result.shape[0] != 0): table[this] = result";
var tempCol = new TempFileCollection(Path.GetTempPath(), false);
var filename = tempCol.AddExtension("py");
File.WriteAllText(filename, expandedSourceCode);
//Run Python code
_excel.StatusBar = $"Running Python for '{activeSheet.Name}' In Background ...";
Run(settings.path, Path.Combine(settings.args, filename), sourceCode, activeSheet);
_excel.StatusBar = "";
//
}
else
{
MessageBox.Show("There is no table refresh code associated with this worksheet.", "Refresh Table Message", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
private static void Run(string pyPath, string pyArg, string sourceCode, Worksheet ws)
{
var _excel = new Application(null, ExcelDna.Integration.ExcelDnaUtil.Application);
try
{
var psi = new ProcessStartInfo()
{
FileName = pyPath,
WorkingDirectory = Path.GetDirectoryName(_excel.ActiveWorkbook.Path.Length > 0 ? _excel.ActiveWorkbook.Path : pyArg),
Arguments = pyArg,
RedirectStandardError = true,
RedirectStandardOutput = true,
WindowStyle = ProcessWindowStyle.Hidden,
CreateNoWindow = true,
UseShellExecute = false
};
var process = new Process();
var output = "";
var error = "";
process.StartInfo = psi;
process.EnableRaisingEvents = false;
process.OutputDataReceived += (sender, eventArgs) => output += eventArgs.Data + "\n";
process.ErrorDataReceived += (sender, eventArgs) => error += eventArgs.Data + "\n";
process.Start();
process.BeginOutputReadLine();
process.BeginErrorReadLine();
var processExited = process.WaitForExit(30000);
var lastError = error.Trim().Split('\n').Reverse().Take(1).ToArray()[0].ToString();
if (processExited == false) // we timed out...
{
process.Kill();
lastError = "Execution of the python script timed out after 30 seconds.";
}
//Script execution completed.
var separator = new string[] { "\n\n#Refreshed = ", "\n \n#Refreshed = " };
var newSource = sourceCode.Split(separator, StringSplitOptions.None).FirstOrDefault();
newSource += "\n\n#Refreshed = " + DateTime.Now.ToString("yyyy-mm-dd @ hh:mm tt");
if (lastError.Trim().Length > 0)
{
newSource += "\n#Error = " + lastError;
}
if (error.Trim().Length > 0 || true)
{
newSource += "\n#Source = " + pyArg;
}
if (output.Trim().Length > 0)
{
newSource += "\n#Output = " + output.Trim().Replace("\n", "\n#Output = ");
}
if (error.Trim().Length > 0)
{
newSource += "\n\n#StackTrace\n#" + error.Replace("\n", "\n#");
}
PythonSourceManager.SetSourceCode((Workbook)ws.Parent, ws.Name, newSource);
if (ws.Name == ((ws.Parent as Workbook).ActiveSheet as Worksheet).Name)
{
CTPManager.Save(newSource);
}
}
catch (Exception ex)
{
MessageBox.Show("Error executing Python script: " + ex.Message);
}
finally
{
_excel.Application.EnableEvents = true;
_excel.Application.ScreenUpdating = true;
}
}
public void btnShowEditor_Click()
{
CTPManager.Show();
}