WPF

foreach (DataRow dr in ds.Tables[0].Rows)
            {
                //yada yada
                MyClass.property2 = dr.IsNull(2) ? String.Empty : (string)dr.ItemArray[3];
                MyClass.property3 = dr.IsNull(3) ? String.Empty : (string)dr.ItemArray[3];
                //yada yada
            }

foreach (DataRow dr in ds.Tables[0].Rows)
            {
                //yada yada
                MyClass.property2 = dr.IsNull(2) ? String.Empty : (string)dr.ItemArray[2];
                MyClass.property3 = dr.IsNull(3) ? String.Empty : (string)dr.ItemArray[3];
                //yada yada
            }

public string Notes;   // This is a field - Do not try to bind to this

private string _notes;
public string Notes { get { return _notes; } set { _notes = value; } }  // This is a property you can bind to

public string Notes { get; set; }  // This is also a property, but harder to debug, since you can't set breakpoints

public abstract class ViewModelBase : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;
    /// <summary>
    /// Raised because the property has changed.
    /// </summary>
    /// <param name="property">The name of the property that changed.</param>
    protected virtual void OnChanged(string property)
    {
      var handler = PropertyChanged;
      if (handler == null)
      {
        return;
      }

      handler(this, new PropertyChangedEventArgs(property));
    }
}

private string _passCode;
public string PassCode
{
  get { return _passCode; }
  set
  {
    if (_passCode == value) return;
    _passCode = value;
    OnChanged("PassCode");
  }
}

public class MyRadioButton : RadioButton
{
    protected override void OnKeyDown(KeyEventArgs e)
    {
        if (e.Key == Key.A)
            OnClick();
        else
            base.OnKeyDown(e);
    }
}

Mark Salsbery
Microsoft MVP - Visual C++

private void imgCalendar_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
    //Microsoft.Windows.Controls.DataGridCell cell = sender as Microsoft.Windows.Controls.DataGridCell;
    Microsoft.Windows.Controls.DataGridCell cell = FindVisualParent<Microsoft.Windows.Controls.DataGridCell>(sender as Image);
    Microsoft.Windows.Controls.DataGrid dataGrid = FindVisualParent<Microsoft.Windows.Controls.DataGrid>(cell);
}

Mark Salsbery
Microsoft MVP - Visual C++

modified on Tuesday, May 10, 2011 4:59 PM

System.Windows.Data Error: 40 : BindingExpression path error: 'CellBackground' property not found on 'object' ''Person' (HashCode=51777710)'. BindingExpression:Path=CellBackground; DataItem='Person' (HashCode=51777710); target element is 'DataGridCell' (Name=''); target property is 'Background' (type 'Brush')