private ComboBoxEditableWhenFocused CreateCardinalityComboBox(object businessObject, string bindingPropertyName, string isVisiblePropetyName, string isEnabledPropertyName)
{
var comboBox = new ComboBoxEditableWhenFocused {
Style = (Style)FindResource(COMBOBOX_STYLE), ItemsSource = CardinalityList.Instance, DisplayMemberPath = "Text", SelectedValuePath = "Value"
};
SetCommunBindings(comboBox, ComboBoxEditableWhenFocused.SelectedValueProperty, businessObject, bindingPropertyName, isVisiblePropetyName);
if (isEnabledPropertyName != null)
{
comboBox.SetBinding(ComboBoxEditableWhenFocused.IsReadOnlyProperty, new Binding(isEnabledPropertyName)
{
Source = businessObject, Converter = new NotBoolConverter()
});
}
return(comboBox);
}
private ComboBoxEditableWhenFocused CreateComboBoxWithNull <T>(object businessObject, IEnumerable <T> items, string displayMemberPath, string bindingPropertyName, string isVisiblePropetyName, string isEnabledPropertyName) where T : class
{
var style = (Style)FindResource(COMBOBOX_STYLE);
var comboBox = new ComboBoxEditableWhenFocused();
var itemType = items.GetType();
var nullValues = NullValue.GetValues("(none)");
comboBox.ItemsSource = new CompositeCollection()
{
new CollectionContainer()
{
Collection = nullValues
}, new CollectionContainer()
{
Collection = items
}
};
var newStyle = new Style(typeof(ComboBoxEditableWhenFocused));
var fef = new FrameworkElementFactory(typeof(TextBlock));
fef.SetBinding(TextBlock.TextProperty, new Binding(displayMemberPath));
var styleResourceDictionary = new ResourceDictionary();
foreach (var trigger in style.Triggers)
{
newStyle.Triggers.Add(trigger);
}
foreach (var resourceKey in style.Resources.Keys)
{
styleResourceDictionary.Add(resourceKey, style.Resources[resourceKey]);
}
styleResourceDictionary.Add(itemType.GetGenericArguments()[0], new DataTemplate(itemType.GetGenericArguments()[0])
{
VisualTree = fef
});
newStyle.Resources = styleResourceDictionary;
comboBox.Style = newStyle;
SetCommunBindings(comboBox, ComboBoxEditableWhenFocused.SelectedValueProperty, new ComboBoxSelectedValueBindingWithNull <T>(businessObject.GetType().GetProperty(bindingPropertyName).GetValue(businessObject, null) ?? nullValues[0], (T value) => businessObject.GetType().GetProperty(bindingPropertyName).SetValue(businessObject, value, null)), "ComboSelectedValue", isVisiblePropetyName);
if (isEnabledPropertyName != null)
{
comboBox.SetBinding(ComboBoxEditableWhenFocused.IsReadOnlyProperty, new Binding(isEnabledPropertyName)
{
Source = businessObject, Converter = new NotBoolConverter()
});
}
return(comboBox);
}