private void DataFile(int[,] m, ref int r, ref int c)
{
string StartUpPath = Application.StartupPath;
string f = StartUpPath + @"\cheap.txt";
StreamReader read = new StreamReader(f);
c = Convert.ToInt32(read.ReadLine());
r = Convert.ToInt32(read.ReadLine());
string WholeLine;
for (int x = 1; x <= r; x++)
{
WholeLine = read.ReadLine();
lines = WholeLine.Split(' ');
//Alternate Solution
//where the number of data per row varies
//***************************************
//int u = lines.Length;
//for(int y=1;y<=u;y++)
for (int y = 1; y <= c; y++)
{
m[x, y] = int.Parse(lines[y - 1]);
}
}
read.Close();
}
/// <summary>
/// Method that retrieves the whole transaction list parsing
/// a flat file containing a transaction items values on the same row
/// </summary>
/// <returns>Transaction database list</returns>
public List <Transaction> GetAllTransactions()
{
String WholeLine;
String[] ParsedLine;
StreamReader InputData;
int mapIndex;
List <Transaction> result = new List <Transaction>();
// create a new map
map = new Map();
// retrieve the relative path of the flat file from the configuration data
String AbsFilepath = ConfigurationManager.ConnectionStrings["BasketConnectionString"].ConnectionString;
// open the stream for reading
InputData = File.OpenText(AbsFilepath);
// foreach line in the flat file do:
while (!InputData.EndOfStream)
{
// create a new empty transaction
Transaction trans = new Transaction();
WholeLine = InputData.ReadLine();
// split the line in chunks. each chunk is a text-formatted item value delimited by black spaces
ParsedLine = WholeLine.Split(' ');
foreach (String TextItem in ParsedLine)
{
// check whether the current chunk is the empty string or not
if (TextItem != "")
{
// parse the actual item integer value from the chunk
int item = Int32.Parse(TextItem);
// try to get the map index for this item
mapIndex = map.GetIndex(item);
// check if the item has been already stored in the map or not
if (mapIndex == -1)
{
// if not, add the item to the map and get its map index
map.Insert(item);
mapIndex = map.GetIndex(item);
}
// add the map index to the transaction
trans.addItem(mapIndex);
}
}
// add the transaction to result
result.Add(trans);
}
// we are done. close the stream and return result
InputData.Close();
return(result);
}
private void BtnFileSort_Click(object sender, EventArgs e)
{
int c = 0;
string [] lines = new string[2];
string s = Application.StartupPath;
string f = s + @"\marks.txt";
StreamReader r = new StreamReader(f);
StudentRecord[] rec = new StudentRecord[100];
string WholeLine;
while ((WholeLine = r.ReadLine()) != null)
{
c++;
lines = WholeLine.Split(',');
rec[c] = new StudentRecord();
rec[c].sname = lines[0];
rec[c].mark = int.Parse(lines[1]);
}
r.Close();
int n = c;
Sort(rec, n);
Display(rec, n);
}
private void BtnRead_Click(object sender, EventArgs e)
{
c = 0;
n = 0;
string s = Application.StartupPath;
string f = s + @"\names.txt";
StreamReader r = new StreamReader(f);
string WholeLine;
while ((WholeLine = r.ReadLine()) != null)
{
c++;
lines = WholeLine.Split(' '); //contents of WholeLine separated based
//on blank space and each part stored
st[c].fn = lines[0];
st[c].ln = lines[1];
st[c].age = Convert.ToInt32(lines[2]);
}
r.Close();
n = c;
DisplayResults();
Sort();
DisplaySortedResults();
}
/// <summary>Export this pattern as XML</summary>
public virtual XElement ToXml(XElement node)
{
node.Add
(
Expr.ToXml(XmlTag.Expr, false),
Active.ToXml(XmlTag.Active, false),
PatnType.ToXml(XmlTag.PatnType, false),
IgnoreCase.ToXml(XmlTag.IgnoreCase, false),
Invert.ToXml(XmlTag.Invert, false),
WholeLine.ToXml(XmlTag.WholeLine, false),
SingleLine.ToXml(XmlTag.SingleLine, false)
);
return(node);
}
private void toolStripMenuItem2_Click(object sender, EventArgs e)
{
c = 0;
n = 0;
openFileDialog1.Reset();
openFileDialog1.InitialDirectory = Application.ExecutablePath;
openFileDialog1.Filter = "Text files (*.txt)|*.txt|" + "All files|*.*";
openFileDialog1.FilterIndex = 1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
//string s = Application.StartupPath;
//string f = s + @"\albums.txt";
f = openFileDialog1.FileName;
StreamReader r = new StreamReader(f);
string WholeLine;
while ((WholeLine = r.ReadLine()) != null)
{
c++;
lines = WholeLine.Split(',');
albumname[c] = lines[0];
borrower[c] = lines[1];
}
r.Close();
n = c;
Search.Shell(albumname, borrower, n);
}
else
{
MessageBox.Show("No File Chosen");
}
}
private void FrmAlbums_Load(object sender, EventArgs e)
{
c = 0;
n = 0;
string s = Application.StartupPath;
string f = s + @"\albums.txt";
StreamReader r = new StreamReader(f);
string WholeLine;
while ((WholeLine = r.ReadLine()) != null)
{
c++;
lines = WholeLine.Split(',');
albumname[c] = lines[0];
borrower[c] = lines[1];
}
r.Close();
n = c;
Search.Shell(albumname, borrower, n);
}
private void OpenFile()
{
c = 0;
n = 0;
fileOK = "yes";
StreamReader r = null;
try
{
openFileDialog1.Reset();
openFileDialog1.InitialDirectory = Application.ExecutablePath;
openFileDialog1.Filter = "Text files (*.txt)|*.txt|" + "All files|*.*";
openFileDialog1.FilterIndex = 1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
//string s = Application.StartupPath;
//string f = s + @"\albums.txt";
f = openFileDialog1.FileName;
r = new StreamReader(f);
string WholeLine;
while ((WholeLine = r.ReadLine()) != null)
{
c++;
lines = WholeLine.Split(',');
albumname[c] = lines[0];
borrower[c] = lines[1];
}
//r.Close(); In finally statement below
//n = c;
//add filename to statusbar
toolStripStatusLabel.Text = "File Loaded";
Search.Shell(albumname, borrower, n);
}
else
{
MessageBox.Show("No File Chosen");
}
}
catch (Exception exp)
{
MessageBox.Show("Error Occured during File IO " + exp.Message);
fileOK = "no";
}
finally
{
if (r != null)
{
r.Close();
}
if (fileOK == "yes")
{
n = c;
toolStripStatusLabel.Text = "File Loaded";//add filename to statusbar
}
else
{
c = 0;
n = 0;
toolStripStatusLabel.Text = "File Loading Error";
}
}
}
