/// <summary>
/// Handles a change to the Width property.
/// </summary>
/// <param name="dependencyObject">The owner of the property.</param>
/// <param name="dependencyPropertyChangedEventArgs">The event arguments.</param>
static void OnWidthChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
// If the column width is set to Double.NaN then we need to auto size the column. Otherwise the column is given a specific width for all rows.
ColumnViewColumn columnViewColumn = dependencyObject as ColumnViewColumn;
columnViewColumn.OnPropertyChanged(WidthProperty.Name);
}
/// <summary>
/// Handles a change to a generic property.
/// </summary>
/// <param name="dependencyObject">The Object that originated the event.</param>
/// <param name="dependencyPropertyChangedEventArgs">The property change event arguments.</param>
static void OnPropertyChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
// This will raise the INotifyPropertyChange event for any of the generic properties attached to this handler.
ColumnViewColumn columnViewColumn = dependencyObject as ColumnViewColumn;
columnViewColumn.OnPropertyChanged(dependencyPropertyChangedEventArgs.Property.Name);
// This will provide a default value for the description when a string header is defined. The designer can always override it with an explicit
// description of the column. The description shows up in the context menu and the 'Choose Column Details' dialog box.
if (dependencyPropertyChangedEventArgs.Property == ColumnViewColumn.HeaderProperty)
{
String headerText = dependencyPropertyChangedEventArgs.NewValue as String;
if (headerText != null && columnViewColumn.Description == null)
{
columnViewColumn.Description = headerText;
}
}
}
