/// <summary>
/// Sends the current binding target value to the binding source property in TwoWay or OneWayToSource bindings.
/// </summary>
public void UpdateSource()
{
if (realMode != BindingMode.OneWayToSource && realMode != BindingMode.TwoWay)
{
throw new ApplicationException(String.Format("Cannot update source in {0} binding mode.", realMode));
}
ignoreSourceListener = true;
try {
Object targetValue;
if (null == adapter)
{
targetValue = targetPropertyInfo.GetGetMethod( ).Invoke(target, null);
}
else
{
targetValue = adapter.GetValue(target, targetProperty);
}
//
if (targetIsObservable) // Work with collection
{
IList sourceListNow = ( IList )sourcePropertyInfo.GetGetMethod().Invoke(source, null);
if (targetValue == null)
{
if (null != sourceListNow)
{
sourceListNow.Clear();
}
}
else
{
if (null != sourceListNow)
{
sourceListNow.Clear();
foreach (object item in (IEnumerable)targetValue)
{
sourceListNow.Add(item);
}
// Subscribe
if (targetList != null)
{
((IObservableList)targetList).ListChanged -= targetListChanged;
}
targetList = (IList)targetValue;
sourceList = sourceListNow;
((IObservableList)targetList).ListChanged += targetListChanged;
}
else
{
// Nothing to do : source list is null, ignoring sync operation
}
}
}
else // Work with usual property
{
Object convertedValue = targetValue;
// Convert if need
if (null != converter)
{
ConversionResult result = converter.Convert(targetValue);
if (!result.Success)
{
if (null != OnBinding)
{
OnBinding.Invoke(new BindingResult(true, false, result.FailReason));
}
if (updateSourceIfBindingFails)
{
// Will update source using null or default(T) if T is primitive
sourcePropertyInfo.GetSetMethod().Invoke(source, new object[] { null });
}
return;
}
convertedValue = result.Value;
}
// Validate if need
if (null != Validator)
{
ValidationResult validationResult = Validator.Validate(convertedValue);
if (!validationResult.Valid)
{
if (null != OnBinding)
{
OnBinding.Invoke(new BindingResult(false, true, validationResult.Message));
}
if (updateSourceIfBindingFails)
{
// Will update source using null or default(T) if T is primitive
sourcePropertyInfo.GetSetMethod().Invoke(source, new object[] { null });
}
return;
}
}
sourcePropertyInfo.GetSetMethod().Invoke(source, new object[] { convertedValue });
if (null != OnBinding)
{
OnBinding.Invoke(new BindingResult(false));
}
//
}
} finally {
ignoreSourceListener = false;
}
}
public ConversionResult ConvertBack(object tSecond)
{
return(converter.Convert(tSecond));
}
