C#

Hervend wrote:

the toggle buttons associated to the rows of the DataGrid

<DataGrid.RowHeaderTemplate>
          <DataTemplate>
              <ToggleButton x:Name="RowHeaderToggleButton" Cursor="Hand"/>  
          </DataTemplate>   
</DataGrid.RowHeaderTemplate>      
<DataGrid.RowHeaderStyle>
     <Style>
         <Setter Property="Button.Command" Value="{Bidning RowHeaderToggleButtonCommand"/>
     </Style>
</DataGrid.RowHeaderStyle>

public IntegerPolynomial getIntegerPolynomial()
{
    List<Integer> coefficients = new List<Integer>();
    foreach (Number coefficient in Coefficients)
        coefficients.Add((Integer)coefficient);
    return new IntegerPolynomial(coefficients);
}

static Polynomial<Integer> Foo(this Polynomial<Integer> x)
{
    // something
}

Alexander Kindel wrote:

There is some polynomial behavior that applies to polynomials with any Number coefficients, and some, like getPsuedoRemainder(), that applies only to Integer coefficient polynomials

public class MyClass
    {
    public event EventHandler TestEvent;
    protected virtual void OnTestEvent(EventArgs e)
        {
        EventHandler eh = TestEvent;
        if (eh != null)
            {
            eh(this, e);
            }
        }
    public void Signal()
        {
        OnTestEvent(null);
        }
    }

void mc_TestEvent1(object sender, EventArgs e)
    {
    Console.WriteLine("Event handler 1");
    }
void mc_TestEvent2(object sender, EventArgs e)
    {
    Console.WriteLine("Event handler 2");
    }


private void MyButton_Click(object sender, EventArgs e)
    {
    MyClass mc = new MyClass();
    mc.TestEvent += mc_TestEvent1;
    mc.TestEvent += mc_TestEvent2;
    mc.Signal();
    }

Event handler 1
Event handler 2

MyClass mc1 = new MyClass();
MyClass mc2 = new MyClass();
mc1.TestEvent += mc_TestEvent1;
mc2.TestEvent += mc_TestEvent2;
mc1.Signal();

Event handler 1

Event handler 1
Event handler 2

MyClass mc1 = new MyClass();
MyClass mc2 = new MyClass();
mc1.TestEvent += mc_TestEvent1;
mc2.TestEvent += mc_TestEvent2;
mc1.Signal();
mc2.Signal();

MyClass mc = new MyClass();
mc.TestEvent += mc_TestEvent1;
mc.TestEvent += mc_TestEvent2;
Console.WriteLine("Two:");
mc.Signal();
mc.TestEvent -= mc_TestEvent1;
Console.WriteLine("One:");
mc.Signal();

Two:
Event handler 1
Event handler 2
One:
Event handler 2

foreach (MyClass mc in myClassesCollection)
    {
    mc.TestEvent -= mc_TestEvent1;
    }

textBoxes[i].TextChanged-= anEventHandlerWithGenericName_TextChanged

kiloTextBox.TextChanged -= kiloTextBox_TextChanged
poundTextBox.TextChanged -= poundTextBox_TextChanged
stoneTextBox.TextChanged -= stoneTextBox_TextChanged

textBoxes[i].TextChanged-= textBoxes[i] + "_TextChanged"

static void RemoveEvents(object o, string nameOfEvent)
    {
    FieldInfo fi = o.GetType().GetField(nameOfEvent, BindingFlags.Static | BindingFlags.Instance | BindingFlags.NonPublic);
    if (fi != null)
        {
        fi.SetValue(o, null);
        }
    }

private void MyButton_Click(object sender, EventArgs e)
    {
    MyClass mc = new MyClass();
    mc.TestEvent += mc_TestEvent1;
    mc.TestEvent += mc_TestEvent2;
    Console.WriteLine("Two:");
    mc.Signal();
    RemoveEvents(mc, "TestEvent");
    Console.WriteLine("None:");
    mc.Signal();
    }