// Exception save không được file .meg
private void HandleSaveException(Exception ex, SerializationEventArgs e)
{
MessageBox.Show(this,
"Save File operation failed. File name: " + e.FileName + "\n" +
"Reason: " + ex.Message,
Application.ProductName);
e.Error = true;
}
private void docManager_SaveEvent(object sender, SerializationEventArgs e)
{
try
{
e.Formatter.Serialize(e.SerializationStream, TheLayers);
}
catch (ArgumentNullException ex)
{
HandleSaveException(ex, e);
}
catch (SerializationException ex)
{
HandleSaveException(ex, e);
}
catch (SecurityException ex)
{
HandleSaveException(ex, e);
}
}
private void docManager_LoadEvent(object sender, SerializationEventArgs e)
{
try
{
TheLayers = (Layers)e.Formatter.Deserialize(e.SerializationStream);
}
catch (ArgumentNullException ex)
{
HandleLoadException(ex, e);
}
catch (SerializationException ex)
{
HandleLoadException(ex, e);
}
catch (SecurityException ex)
{
HandleLoadException(ex, e);
}
}
public bool SaveDocument(SaveType type)
{
string newFileName = this.fileName;
System.Windows.Forms.SaveFileDialog saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
saveFileDialog1.Filter = fileDlgFilter;
if ((type == SaveType.SaveAs) ||
Empty(newFileName))
{
if (!Empty(newFileName))
{
saveFileDialog1.InitialDirectory = Path.GetDirectoryName(newFileName);
saveFileDialog1.FileName = Path.GetFileName(newFileName);
}
else
{
saveFileDialog1.InitialDirectory = fileDlgInitDir;
saveFileDialog1.FileName = newDocName;
}
DialogResult res = saveFileDialog1.ShowDialog(frmOwner);
if (res != DialogResult.OK)
{
return(false);
}
newFileName = saveFileDialog1.FileName;
fileDlgInitDir = new FileInfo(newFileName).DirectoryName;
}
try
{
using (Stream stream = new FileStream(
newFileName, FileMode.Create, FileAccess.Write))
{
IFormatter formatter = new BinaryFormatter();
if (SaveEvent != null)
{
SerializationEventArgs args = new SerializationEventArgs(
formatter, stream, newFileName);
SaveEvent(this, args);
if (args.Error)
{
return(false);
}
}
}
}
catch (ArgumentNullException ex) { return(HandleSaveException(ex, newFileName)); }
catch (ArgumentOutOfRangeException ex) { return(HandleSaveException(ex, newFileName)); }
catch (ArgumentException ex) { return(HandleSaveException(ex, newFileName)); }
catch (SecurityException ex) { return(HandleSaveException(ex, newFileName)); }
catch (FileNotFoundException ex) { return(HandleSaveException(ex, newFileName)); }
catch (DirectoryNotFoundException ex) { return(HandleSaveException(ex, newFileName)); }
catch (PathTooLongException ex) { return(HandleSaveException(ex, newFileName)); }
catch (IOException ex) { return(HandleSaveException(ex, newFileName)); }
Dirty = false;
SetFileName(newFileName);
return(true);
}
public bool OpenDocument(string newFileName)
{
if (!CloseDocument())
{
return(false);
}
if (Empty(newFileName))
{
System.Windows.Forms.OpenFileDialog openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
openFileDialog1.Filter = fileDlgFilter;
openFileDialog1.InitialDirectory = fileDlgInitDir;
DialogResult res = openFileDialog1.ShowDialog(frmOwner);
if (res != DialogResult.OK)
{
return(false);
}
newFileName = openFileDialog1.FileName;
fileDlgInitDir = new FileInfo(newFileName).DirectoryName;
}
try
{
using (Stream stream = new FileStream(
newFileName, FileMode.Open, FileAccess.Read))
{
IFormatter formatter = new BinaryFormatter();
if (LoadEvent != null)
{
SerializationEventArgs args = new SerializationEventArgs(
formatter, stream, newFileName);
LoadEvent(this, args);
if (args.Error)
{
if (OpenEvent != null)
{
OpenEvent(this,
new OpenFileEventArgs(newFileName, false));
}
return(false);
}
if (DocChangedEvent != null)
{
DocChangedEvent(this, new EventArgs());
}
}
}
}
catch (ArgumentNullException ex) { return(HandleOpenException(ex, newFileName)); }
catch (ArgumentOutOfRangeException ex) { return(HandleOpenException(ex, newFileName)); }
catch (ArgumentException ex) { return(HandleOpenException(ex, newFileName)); }
catch (SecurityException ex) { return(HandleOpenException(ex, newFileName)); }
catch (FileNotFoundException ex) { return(HandleOpenException(ex, newFileName)); }
catch (DirectoryNotFoundException ex) { return(HandleOpenException(ex, newFileName)); }
catch (PathTooLongException ex) { return(HandleOpenException(ex, newFileName)); }
catch (IOException ex) { return(HandleOpenException(ex, newFileName)); }
Dirty = false;
SetFileName(newFileName);
if (OpenEvent != null)
{
OpenEvent(this, new OpenFileEventArgs(newFileName, true));
}
return(true);
}
