private void BTAddToList_Click(object sender, EventArgs e)
{
//check empty fields
if (CBBoodschap.SelectedIndex >= 0 && string.IsNullOrWhiteSpace(TBAmount.Text) == false)
{
bool alreadyExists = true;
//check if already added
for (int i = 0; i < boodschappenLijst.Count(); i++)
{
if (CBBoodschap.SelectedItem.ToString() == Convert.ToString(boodschappenLijst[i].Item))
{
alreadyExists = false;
MessageBox.Show("Boodschap staat al in de lijst op regel: " + (i + 1));
}
}
if (alreadyExists)
{
//add item to list
Boodschap bs = new Boodschap(CBBoodschap.SelectedItem.ToString(), Convert.ToInt32(TBAmount.Text));
boodschappenLijst.Add(bs);
displayBoodschappenLijst();
CBBoodschap.SelectedIndex = -1;
TBAmount.Text = "";
}
}
else
{
MessageBox.Show("Niet alle velden zijn ingevuld.");
}
}
void LoadCurrentBoodschappenLijst()
{
XmlDocument xmlDoc = new XmlDocument();
try
{
xmlDoc.Load("LastGroceryList.xml");
}
catch
{
XmlWriter writer = XmlWriter.Create("LastGroceryList.xml");
writer.WriteStartElement("Grocerys");
writer.WriteEndElement();
writer.Flush();
}
try
{
foreach (XmlNode node in xmlDoc.DocumentElement.ChildNodes)
{
string item = node.SelectSingleNode("Item").InnerText;
string amount = node.SelectSingleNode("Amount").InnerText;
Boodschap bs = new Boodschap(item, Convert.ToInt32(amount));
boodschappenLijst.Add(bs);
}
displayBoodschappenLijst();
}
catch
{
}
}