/// <summary>
/// reads the manual from specific file and return list<string>
/// </summary>
/// <returns></returns>
//public List<string> GettingManual()
//{
// FileStream fs = new FileStream("Manual.txt", FileMode.Open, FileAccess.Read);
// StreamReader sr = new StreamReader(fs);
// List<string> manual = new List<string>();
// string s = sr.ReadLine();
// while (s != null)
// {
// manual.Add(s);
// s = sr.ReadLine();
// }
// sr.Dispose();
// fs.Dispose();
// return manual;
//}
/// <summary>
/// save the project to a file as a binary format.
/// user will give the filepath and the object that need to save as two paramaters.
/// </summary>
/// <returns></returns>
public void SaveToFile(string filepath, PipelineGround p)
{
BinaryFormatter bf = new BinaryFormatter();
FileStream fs = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write);
fs.SetLength(0);
bf.Serialize(fs, p);
fs.Dispose();
}
private void OpenFile()
{
if (changes)
{
DialogResult result = MessageBox.Show("Do you want to save the previous work?", "save?", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{
if (path == "")
{
SaveToFile();
}
else
{
fh.SaveToFile(path, pg);
}
}
}
string filename = "";
OpenFileDialog newfile = new OpenFileDialog();
newfile.DefaultExt = ".np"; // Default file extension
newfile.Filter = "Flie (.np)|*.np"; // Filter files by extension
DialogResult dr = newfile.ShowDialog();
if (dr == DialogResult.OK)
{
path = filename = newfile.FileName;
ClearNumericBox();
Reset();
pg = fh.LoadFromFile(filename);
if (pg == null)
{
pg = new PipelineGround();
}
pbPipeline.Invalidate();
changes = false;
this.Text = filename;
}
}
/// <summary>
/// reads a project and load from a file.
/// if the file selected is not a valid file, then return null.
/// otherwise read the file and return the object with type of "pipeground".
/// </summary>
/// <param name="filepath"></param>
/// <returns>the object created above (pipeground object mani)</returns>
/// </summary>
/// <returns></returns>
public PipelineGround LoadFromFile(string filepath)
{
try
{
BinaryFormatter bf = new BinaryFormatter();
FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);
if (fs.Length == 0)
{
pg = null;
}
else
{
pg = (PipelineGround)bf.Deserialize(fs);
}
fs.Dispose();
return(pg);
}
catch (Exception)
{
MessageBox.Show("Not a valid file!");
return(null);
}
}
/// <summary>
/// constructor of specific class
/// </summary>
public FileHelper()
{
pg = new PipelineGround();
}
