C# Winforms NumericUpDown Binding

Asked Oct 05 '17 at 14:09

Active Oct 05 '17 at 15:51

Viewed 923 times

When you bind property Value an exception is thrown:

An exception of the type "System.ArgumentException" appeared in System.Windows.Forms.dll, but was not processed in user code

For more information: For a composite DataBinding, the IList or IListSource can serve as the data source.

Form

public partial class MainForm : Form, IPresenter<MainPresenter>
{
        private MainPresenter _presenter;
        public MainForm()
        {
            InitializeComponent();
            _presenter = new MainPresenter() { Current = this };
            numericUpDown1.DataBindings.Add(new Binding("Value", _presenter, nameof(_presenter.YearOfIssue), false, DataSourceUpdateMode.OnPropertyChanged));

        }
}

Presetner

public class MainPresenter : PresenterBase, IView<MainForm>
{
        private decimal _yearOfIssue;
        private MainForm _form;

        public decimal YearOfIssue
        {
            get
            {
                return _yearOfIssue;
            }
            set
            {
                _yearOfIssue = value;
                OnChanged("YearOfIssue");
            }
        }
}

Question

How to correctly bind the property "Value" in Control NumericUpDown?

edited Oct 05 '17 at 15:51

asked Oct 05 '17 at 14:09

murash

You assign to `Presenter`, but reference `_presenter`. Why? – DonBoitnott Oct 05 '17 at 14:18
Try [Does data binding support nested properties in Windows Forms?](https://stackoverflow.com/a/8894977/719186) – LarsTech Oct 05 '17 at 15:56
@LarsTech, Sorry. It does not work – murash Oct 05 '17 at 16:32
We don't have enough code to duplicate your issue since you hide things in your inheritance and interfaces from us. – LarsTech Oct 05 '17 at 16:34

C# Winforms NumericUpDown Binding

0 Answers0