/// <summary>
/// Event handler for the form 'Shown' event. Loads the PTU configuration file and initializes the communication interface.
/// </summary>
/// <param name="sender">Reference to the object that raised the event.</param>
/// <param name="e">Parameter passed from the object that raised the event.</param>
private void MdiPTU_Shown(object sender, EventArgs e)
{
// Skip, if the Dispose() method has been called.
if (IsDisposed)
{
return;
}
this.Update();
Cursor = Cursors.WaitCursor;
// ----------------------------------
// Load the XML data dictionary file.
// ----------------------------------
m_DataDictionary = new DataDictionary();
// Check whether the default XML configuration file is to be used.
if (m_FilenameDataDictionary == Resources.FilenameDefaultDataDictionary)
{
// Yes - Check whether the default configuration file exists.
string fullFilename = DirectoryManager.PathPTUConfigurationFiles + @"\" + m_FilenameDataDictionary;
FileInfo fileInfo = new FileInfo(fullFilename);
if (fileInfo.Exists == false)
{
MessageBox.Show(string.Format(Resources.MBTConfigDefaultNotFound, Resources.FilenameDefaultDataDictionary), Resources.MBCaptionWarning,
MessageBoxButtons.OK, MessageBoxIcon.Warning);
Security.Initialize();
m_Security = new Security();
ShowSecurityLevelChange(m_Security);
Cursor = Cursors.Default;
SetMode(Mode.Setup);
return;
}
}
// Read the XML configuration file.
try
{
// If the XML file hasn't been updated to include the YearCodeSize field of the CONFIGUREPTU table, the other fields of the table are still
// read in correctly. If an attempt is made to access 'm_DataDictionary.CONFIGUREPTU[0].YearCodeSize' an exception is thrown.
m_DataDictionary.ReadXml(DirectoryManager.PathPTUConfigurationFiles + CommonConstants.BindingFilename + m_FilenameDataDictionary);
}
catch (Exception)
{
MessageBox.Show(string.Format(Resources.MBTConfigInvalid, m_FilenameDataDictionary) + CommonConstants.Space + Resources.MBTConfigReselect,
Resources.MBCaptionError, MessageBoxButtons.OK, MessageBoxIcon.Error);
Security.Initialize();
m_Security = new Security();
ShowSecurityLevelChange(m_Security);
Cursor = Cursors.Default;
SetMode(Mode.Setup);
return;
}
finally
{
this.Cursor = Cursors.Default;
}
Cursor = Cursors.WaitCursor;
LoadDictionary(m_DataDictionary);
Cursor = Cursors.Default;
}
