private void LijstCategorie_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (Categorie cat in e.NewItems)
{
if (!Startup)
{
try
{
lblStatus.Content = "Categorie opslaan";
connection.Open();
var command =
new SqlCommand(
"insert into categorie (titel) values ('" + cat.Titel +
"'); select SCOPE_IDENTITY();",
connection);
var result = (decimal)command.ExecuteScalar();
cat.Id = Convert.ToInt32(result);
var categorieItem = new TreeViewItem
{
Header = cat.Titel,
Tag = cat
};
lblStatus.Content = "Categorie opgeslagen";
CategorieLijst.Items.Add(categorieItem);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
connection.Close();
cat.NotitieLijst.CollectionChanged += categorie_NotitieLijst_CollectionChanged;
}
}
else
{
var categorieItem = new TreeViewItem
{
Header = cat.Titel,
Tag = cat
};
CategorieLijst.Items.Add(categorieItem);
cat.NotitieLijst.CollectionChanged += categorie_NotitieLijst_CollectionChanged;
}
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (Categorie cat in e.OldItems)
{
try
{
lblStatus.Content = "Categorie verwijderen";
connection.Open();
var commandnote = new SqlCommand("delete from notitie where cat_id = " + cat.Id, connection);
commandnote.ExecuteNonQuery();
var command = new SqlCommand("delete from categorie where id = " + cat.Id, connection);
command.ExecuteNonQuery();
connection.Close();
//UI stuff
CategorieLijst.Items.Remove(CategorieLijst.SelectedItem);
notetext.Clear();
NotitieTextBox.Clear();
NotitieTextBox.IsEnabled = false;
lblStatus.Content = "Categorie verwijdert";
}
catch (Exception ex)
{
connection.Close();
MessageBox.Show(ex.Message);
}
}
break;
}
}
private void categorie_NotitieLijst_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (Notitie.Notitie noteItem in e.NewItems)
{
if (Startup)
{
continue;
}
try
{
lblStatus.Content = "Notitie opslaan...";
connection.Open();
TreeViewItem selectedcategory = (TreeViewItem)CategorieLijst.SelectedItem;
var categorie = (Categorie)selectedcategory.Tag;
var command =
new SqlCommand(
"insert into notitie (titel, tekst, cat_id) values ('" + noteItem.Titel + "', '" +
noteItem.Text + "', " + categorie.Id + "); select SCOPE_IDENTITY();",
connection);
var result = (decimal)command.ExecuteScalar();
noteItem.id = Convert.ToInt32(result);
var treeItem = new TreeViewItem
{
Header = noteItem.Titel,
Tag = noteItem
};
NotesLijst.Items.Add(treeItem);
lblStatus.Content = "Notitie opgeslagen";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
connection.Close();
}
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (Notitie.Notitie note in e.OldItems)
{
NotesLijst.Items.Remove(note);
try
{
lblStatus.Content = "Notitie verwijderen...";
connection.Open();
var command = new SqlCommand("delete from notitie where id = " + note.id, connection);
command.ExecuteNonQuery();
NotesLijst.Items.Remove(NotesLijst.SelectedItem);
//UI stuff
NotitieTextBox.Clear();
NotitieTextBox.IsEnabled = false;
notetext.Clear();
lblStatus.Content = "Notitie verwijdert";
}
catch (Exception w)
{
MessageBox.Show(w.Message);
}
finally
{
connection.Close();
}
}
break;
}
}
