public static bool TryParseSelectableValueFromString <[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.All)] TValue>(
this InputBase <TValue> input, string?value,
[MaybeNullWhen(false)] out TValue result,
[NotNullWhen(false)] out string?validationErrorMessage)
{
try
{
// We special-case bool values because BindConverter reserves bool conversion for conditional attributes.
if (typeof(TValue) == typeof(bool))
{
if (TryConvertToBool(value, out result))
{
validationErrorMessage = null;
return(true);
}
}
else if (typeof(TValue) == typeof(bool?))
{
if (TryConvertToNullableBool(value, out result))
{
validationErrorMessage = null;
return(true);
}
}
else if (BindConverter.TryConvertTo <TValue>(value, CultureInfo.CurrentCulture, out var parsedValue))
{
result = parsedValue;
validationErrorMessage = null;
return(true);
}
result = default;
validationErrorMessage = $"The {input.DisplayName ?? input.FieldIdentifier.FieldName} field is not valid.";
return(false);
}
catch (InvalidOperationException ex)
{
throw new InvalidOperationException($"{input.GetType()} does not support the type '{typeof(TValue)}'.", ex);
}
}
public static bool TryParseSelectableValueFromString <TValue>(this InputBase <TValue> input, string?value, [MaybeNullWhen(false)] out TValue result, [NotNullWhen(false)] out string?validationErrorMessage)
{
try
{
if (BindConverter.TryConvertTo <TValue>(value, CultureInfo.CurrentCulture, out var parsedValue))
{
result = parsedValue;
validationErrorMessage = null;
return(true);
}
else
{
result = default;
validationErrorMessage = $"The {input.DisplayName} field is not valid.";
return(false);
}
}
catch (InvalidOperationException ex)
{
throw new InvalidOperationException($"{input.GetType()} does not support the type '{typeof(TValue)}'.", ex);
}
}
internal virtual void UpdateText(IList <Pair <string, string> > _paths)
{
if (!_isLive)
{
_text = Text;
BindingOperations.ClearBinding(this, TextProperty);
Text = _text;
return;
}
if (!_updating)
{
_updating = true;
BindingOperations.ClearBinding(this, TextProperty);
MultiBinding binding = new MultiBinding();
binding.Converter = ConverterSelector();
binding.Mode = BindingMode.TwoWay;
binding.UpdateSourceTrigger = UpdateSourceTrigger.Default;
binding.NotifyOnSourceUpdated = true;
binding.NotifyOnTargetUpdated = true;
//binding.Delay = 10;
InputBase text = null;
//update text
if (_paths != null && State != null)
{
foreach (var item in _paths)
{
var input = (Input)GetValueByPath(State, string.Format("Inputs[{0}]", item.A));
if (input != null)
{
var val = input.Elements.Where(x => (x is InputBase) && (x as InputBase).Name == item.B).FirstOrDefault();
if (val != null && val is InputBase && !_isTable)
{
if (text == null)
{
text = (val as InputBase);
}
else
{
var prop = val.GetType().GetProperty(val is InputImage ? MappedImageProperty : MappedTextProperty);
if (prop != null)
{
var iprop = text.GetType().GetProperty(val is InputImage ? MappedImageProperty : MappedTextProperty);
if (iprop != null)
{
prop.SetValue(val, iprop.GetValue(text));
}
}
}
}
Binding b = new Binding(val is InputImage ? MappedImageProperty : MappedTextProperty);
b.Source = val;
b.Mode = BindingMode.TwoWay;
b.UpdateSourceTrigger = UpdateSourceTrigger.Default;
binding.Bindings.Add(b);
}
}
}
BindingOperations.SetBinding(this, TextProperty, binding);
if (text != null && !_isTable)
{
var iprop = text.GetType().GetProperty(text is InputImage ? MappedImageProperty : MappedTextProperty);
if (iprop != null)
{
Text = (string)iprop.GetValue(text);
}
}
_updating = false;
}
}