private void OnBeginTransaction(object sender, ExecutedRoutedEventArgs e)
{
ModelPropertyEntryBase property = GetContainedPropertyFromEventArgs(e);
if (property == null)
{
return;
}
_pendingTransactions.Add(property.BeginEdit(e.Parameter as string));
}
// Converts an instance of PropertyValue to its appropriate display name
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (typeof(string).IsAssignableFrom(targetType))
{
PropertyValue propertyValue = value as PropertyValue;
if (propertyValue != null)
{
ModelPropertyEntryBase propertyEntry = propertyValue.ParentProperty as ModelPropertyEntryBase;
// Figure out the value type name
string valueTypeName = string.Empty;
if (propertyEntry != null)
{
valueTypeName = propertyEntry.CommonValueType == null ? string.Empty : propertyEntry.CommonValueType.Name;
}
else
{
Debug.Fail("PropertyValueToDisplayNameConverter is being used for something other than ModelPropertyValues. Re-evaluate the correctness of its logic.");
// Fallback mechanism
object rawPropertyValue = propertyValue.Value;
if (rawPropertyValue != null)
{
valueTypeName = rawPropertyValue.GetType().Name;
}
}
// See if there is a regular name
string propertyName = ModelUtilities.GetPropertyName(propertyValue);
if (string.IsNullOrEmpty(propertyName))
{
// Type only
return(string.Format(
culture,
Resources.PropertyEditing_CollectionItemDisplayFormatType,
valueTypeName));
}
else
{
// Type and name
return(string.Format(
culture,
Resources.PropertyEditing_CollectionItemDisplayFormatTypeAndName,
valueTypeName,
propertyName));
}
}
}
return(string.Empty);
}
// IValueConverter Members
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Fx.Assert(typeof(IEnumerable).IsAssignableFrom(targetType), "Expecting IEnumerable as the targetType");
PropertyValue propertyValue = value as PropertyValue;
if (propertyValue == null)
{
return(null);
}
ModelPropertyEntryBase parentProperty = (ModelPropertyEntryBase)propertyValue.ParentProperty;
return(new ConvertedStandardValuesCollection(parentProperty, culture));
}
internal ConvertedStandardValuesCollection(ModelPropertyEntryBase property, CultureInfo culture)
{
_property = property;
_culture = culture;
}
