private void DeleteLine(int a_line)
{
try{
int start_index = ProdukteBox.GetFirstCharIndexFromLine(a_line);
int count = ProdukteBox.Lines[a_line].Length;
// Eat new line chars
if (a_line < ProdukteBox.Lines.Length - 1)
{
count += ProdukteBox.GetFirstCharIndexFromLine(a_line + 1) -
((start_index + count - 1) + 1);
}
string lastPart = ProdukteBox.Lines[a_line].Split('-').Last();
if (lastPart != null)
{
IDErrorLabel.Visible = false;
lastPart = lastPart.Remove(lastPart.Length - 1);
price -= float.Parse(lastPart, System.Globalization.CultureInfo.InvariantCulture);
updatePreis();
ProdukteBox.Text = ProdukteBox.Text.Remove(start_index, count);
ProdukteBox.Refresh();
IDErrorLabel.Visible = false;
}
else
{
IDErrorLabel.Visible = true;
}
}
catch {
IDErrorLabel.Visible = true;
}
}
private void addProd(string name, string preis, float fpreis)
{
id += 1;
produkte.Add(new Tuple <string, int>(name, id));
price += fpreis;
preisListe.Add(fpreis);
updatePreis();
string leer;
if (id >= 10)
{
leer = " ";
}
else
{
leer = " ";
}
ProdukteBox.AppendText("\r\n " + id + "." + leer + name + " - " + preis);
ProdukteBox.ScrollToCaret();
ProdukteBox.Refresh();
}
