private void btAdd_Click(object sender, RoutedEventArgs e)
{
try
{
AddEditTodoDialog addEditDialog = new AddEditTodoDialog(null);
addEditDialog.Owner = this;
addEditDialog.AddNewTodoCallback += (t) => { currTodo = t; };
bool?result = addEditDialog.ShowDialog();
if (result == true)
{
int newId = db.AddTodo(currTodo);
currTodo.Id = newId;
todoList.Add(currTodo);
lstView.ItemsSource = todoList;
lstView.Items.Refresh();
}
operation = "Add new Todo";
lstView.SelectedIndex = lstView.Items.Count - 1;//for status bar selection change
}
catch (DataInvalidException ex)
{
MessageBox.Show(ex.Message, "Error Information");
}
}
private void Update_DoubleClick(object sender, MouseButtonEventArgs e)
{
if (lstView.SelectedItems.Count != 1)
{
MessageBox.Show("Please choose one item to update", "Information");
return;
}
try
{
int index = lstView.SelectedIndex;
AddEditTodoDialog addEditDialog = new AddEditTodoDialog((Todo)lstView.SelectedItem);
addEditDialog.Owner = this;
addEditDialog.AddNewTodoCallback += (c) => { currTodo = c; };
bool?result = addEditDialog.ShowDialog(); // this line must be stay after the assignment, otherwise value is not assigned
if (result == true)
{
db.UpdateTodo(currTodo);
todoList.ElementAt(index).Id = currTodo.Id;
todoList.ElementAt(index).Task = currTodo.Task;
todoList.ElementAt(index).DueDate = currTodo.DueDate;
todoList.ElementAt(index).Status = currTodo.Status;
}
lstView.Items.Refresh();
operation = "Update one record";
lstView.SelectedIndex = 0;
}
catch (DataInvalidException ex)
{
MessageBox.Show(ex.Message, "Error Information");
}
}