[Mono-bugs] [Bug 664837] New: Binding to a list of objects that implement IEditableObject doesn't work correctly

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=664837

https://bugzilla.novell.com/show_bug.cgi?id=664837#c0


           Summary: Binding to a list of objects that implement
                    IEditableObject doesn't work correctly
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.6.x
          Platform: x86
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: cvolzke at live.com.au
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---


User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US)
AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1036 Safari/532.5

Binding to a list of objects that implement IEditableObject doesn't work
correctly.
Edited values are not written back to the data source.


Reproducible: Always

Steps to Reproduce:
[Test]
public void Test_BindingToIEditableObject()
{
    BindingList<TestEditableObject> list = new
BindingList<TestEditableObject>();
    list.AddNew();

    TextBox textBox = new TextBox();
    textBox.DataBindings().Add("Text", list, "List.IntProperty");
    Form.Controls.Add(textBox);

    Form.Show();
    Application.DoEvents();

    var detail = list[0].List.AddNew();
    detail.IntProperty = 5;
    AssertEquals("5", textBox.Text, "TextBox bound correctly");
}

Form form;
Form Form
{
    get { return form ?? (form = new Form()); }
}

class TestEditableObject : IEditableObject
{
    BindingList<TestRelatedEditableObject> list;
    public BindingList<TestRelatedEditableObject> List
    {
        get { return list ?? (list = new
BindingList<TestRelatedEditableObject>()); }
    }

    void IEditableObject.BeginEdit() { }
    void IEditableObject.CancelEdit() { }
    void IEditableObject.EndEdit() { }
}

class TestDataSourceWithRelatedObjects
{
    public event EventHandler ObjPropertyChanged;

    TestDataSource objProperty;
    public TestDataSource ObjProperty
    {
        get { return objProperty; }
        set
        {
            objProperty = value;
            if (ObjPropertyChanged != null)
            {
                ObjPropertyChanged(this, EventArgs.Empty);
            }
        }
    }

    public BindingList<TestDataSource> List { get; set; }
}

class TestRelatedEditableObject : IEditableObject, INotifyPropertyChanged
{
    public event EventHandler IntPropertyChanged;

    int intProperty;
    public int IntProperty
    {
        get { return intProperty; }
        set
        {
            intProperty = value;
            if (IntPropertyChanged != null)
            {
                IntPropertyChanged(this, EventArgs.Empty);
            }
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new
PropertyChangedEventArgs("IntProperty"));
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    void IEditableObject.BeginEdit() { }
    void IEditableObject.CancelEdit() { }
    void IEditableObject.EndEdit() { }
}

class TestDataSource
{
    public event EventHandler IntPropertyChanged;

    public const int IntPropertyDefaultValue = 5;
    int intProperty = IntPropertyDefaultValue;
    public int IntProperty
    {
        get { return intProperty; }
        set
        {
            intProperty = value;
            if (IntPropertyChanged != null)
            {
                IntPropertyChanged(this, EventArgs.Empty);
            }
        }
    }
}

Actual Results:  
Unit test fails

Expected Results:  
Unit test should pass, as it does on ms.net.

To fix, remove CurrencyManager.editing field..

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