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
{
if (BindConverter.TryConvertTo <TValue>(value, CultureInfo.CurrentCulture, out var parsedValue))
{
result = parsedValue;
validationErrorMessage = null;
return(true);
}
else
{
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 <[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);
}
}
