public async Task <object> BindMvfProperty(PropertyInfo property, object value, Type converter)
{
var result = value.ChangeType(property.PropertyType);
if (converter != null)
{
result = MvfValueConverter.GetConvertedBackValue(converter, result);
}
await Task.Run(() => property.SetValue(ViewModel, result));
return(value);
}
private async void StartListeningForChanges()
{
while (true)
{
foreach (var control in this.Controls.AsEnumerable())
{
var connectedBindings = this.BindableProperties.Where(x => x.PropertyInfo.GetPropertyFromAttribute <MvfBindable, string>(b => b.ControlName) == control.Name).ToList();
foreach (var controlBinding in connectedBindings)
{
var controlPropertyname = controlBinding.PropertyInfo.GetPropertyFromAttribute <MvfBindable, string>(b => b.ControlPropertyName);
if (string.IsNullOrEmpty(controlPropertyname))
{
continue;
}
var currentvalue = control.GetProperty(controlPropertyname).GetValue(control);
var lastKnownValue = LastKnownValues[control][controlBinding.PropertyInfo];
if (currentvalue.DeserializedEquals(lastKnownValue))
{
continue;
}
var value = await BindingDispatcher.BindMvfProperty(controlBinding.PropertyInfo, currentvalue, controlBinding.PropertyInfo.GetMvfConverterType());
if (controlBinding.PropertyInfo.GetMvfConverterType() != null)
{
value = MvfValueConverter.GetConvertedValue(controlBinding.PropertyInfo.GetMvfConverterType(),
currentvalue);
}
LastKnownValues[control][controlBinding.PropertyInfo] = value;
}
}
try
{
await Task.Delay(1, ChangesListenerTokenSource.Token);
}
catch (TaskCanceledException)
{
break;
}
}
}
public async Task <bool> BindControl(Control control, PropertyInfo bindingProperty, Type converter = null, BindingType?type = null)
{
if (type != null && !CanBind(type.Value, bindingProperty))
{
return(false);
}
var controlProprty = control.GetProperty(bindingProperty.GetPropertyFromAttribute <MvfBindable, string>(x => x.ControlPropertyName));
if (controlProprty == null)
{
throw new MvfException($"{bindingProperty.Name} is not known value of {control}");
}
return(await Task.Factory.FromAsync(Invoke(), (result) => result.IsCompleted));
IAsyncResult Invoke()
{
return(control.BeginInvoke(new Action(() =>
{
var value = bindingProperty.GetValue(ViewModel);
//TODO ??
if (value == null)
{
return;
}
if (UpdateWithCustomUpdater(control, bindingProperty, value, converter))
{
return;
}
if (converter != null)
{
value = MvfValueConverter.GetConvertedValue(converter, value);
}
controlProprty.SetValue(control, value.ChangeType(controlProprty.PropertyType));
})));
}
}
