private Boolean SaveLinkData()
{
ODpairs.Clear();
ODpairs.Add(new ODdata());
//write table values to the ODArr data structure
Network.NumODrecords = 0;
ODdata od;
try
{
for (int i = 1; i <= dgvODdata.Rows.Count; i++)
{
od = new ODdata();
od.OrigZone = Convert.ToInt32(dgvODdata.Rows[i - 1].Cells[0].Value);
od.DestZone = Convert.ToInt32(dgvODdata.Rows[i - 1].Cells[1].Value);
od.NumTrips = Convert.ToInt64(dgvODdata.Rows[i - 1].Cells[2].Value);
ODpairs.Add(od);
Network.NumODrecords++;
//ODpairs[i].OrigZone = Convert.ToInt32(dgvODdata.Rows[i - 1].Cells[0].Value); //change to int16?
//ODpairs[i].DestZone = Convert.ToInt32(dgvODdata.Rows[i - 1].Cells[1].Value); //change to int16?
//ODpairs[i].NumTrips = Convert.ToInt64(dgvODdata.Rows[i - 1].Cells[2].Value); //change to int16?
//Network.NumODrecords++;
}
DataSaved = true;
DataCurrent = false;
return(true);
}
catch
{
MessageBox.Show("Data cannot be saved. Check data entry cells with a yellow background and/or red font.", "Input Data Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
DataSaved = false;
DataCurrent = false;
return(false);
}
}
private void tsbAddODrecord_Click(object sender, EventArgs e)
{
/*
* int NumODpairs = dgvODdata.Rows.Count; //get number of entered OD pairs
* if (NumODpairs == 1600) //maximum, based on 40 traffic analysis zones (40^2 - 40 = 1360)
* {
* MessageBox.Show("The number of entered OD pairs is limited to a maximum of 1600.", "XXE", MessageBoxButtons.OK, MessageBoxIcon.Information);
* return;
* }
*/
dgvODdata.Rows.Add(1);
for (int i = 0; i < dgvODdata.Columns.Count; i++)
{
dgvODdata.Rows[dgvODdata.Rows.Count - 1].Cells[i].Style.BackColor = Color.Yellow;
}
if (dgvODdata.Rows.Count > 1)
{
tsbDeleteODrecord.Enabled = true;
}
ODdata NewODpair = new ODdata();
ODpairs.Add(NewODpair);
}
private void tsbInsertODrecord_Click(object sender, EventArgs e)
{
/*
* int NumODpairs = dgvODdata.Rows.Count; //get number of entered OD pairs
* if (NumODpairs == 1600) //maximum, based on 40 traffic analysis zones (40^2 - 40 = 1360)
* {
* MessageBox.Show("The number of entered OD pairs is limited to a maximum of 1600.", "XXE", MessageBoxButtons.OK, MessageBoxIcon.Information);
* return;
* }
*/
try
{
//insert a new link between two current intersections
int SelectedRow = dgvODdata.SelectedRows[0].Index;
dgvODdata.Rows.Insert(SelectedRow, 1);
if (dgvODdata.Rows.Count > 1)
{
tsbDeleteODrecord.Enabled = true;
}
for (int i = 0; i < dgvODdata.Columns.Count; i++)
{
dgvODdata.Rows[SelectedRow].Cells[i].Style.BackColor = Color.Yellow;
}
ODdata NewODpair = new ODdata();
ODpairs.Insert(SelectedRow, NewODpair);
}
catch
{
MessageBox.Show("To insert a row, you must select a row by clicking on the row number on the left-hand side of the grid. The new row will be inserted above this row selection.",
"Row Insert Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private Boolean LoadODdata()
{
//LinkData[] LinkArr = new LinkData[20];
if ((ODpairs == null) || (Network.NumODrecords == 0))
{
ODdata NewODpair = new ODdata();
ODpairs.Add(NewODpair);
dgvODdata.Rows.Add(1);
return(false);
}
else
{
try
{
dgvODdata.Rows.Add(Network.NumODrecords);
for (int i = 1; i <= Network.NumODrecords; i++)
{
dgvODdata.Rows[i - 1].Cells[0].Value = ODpairs[i].OrigZone.ToString();
dgvODdata.Rows[i - 1].Cells[1].Value = ODpairs[i].DestZone.ToString();
dgvODdata.Rows[i - 1].Cells[2].Value = ODpairs[i].NumTrips.ToString();
}
dgvODdata.DefaultCellStyle.BackColor = Color.White;
dgvODdata.AlternatingRowsDefaultCellStyle.BackColor = Color.White;
DataSaved = true;
DataCurrent = true;
return(true);
}
catch
{
MessageBox.Show("Invalid Input Data. Check your saved data file for invalid entries and try again.", "Input Data Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
}
