public override ValidationResult Validate(object value, CultureInfo cultureInfo, BindingExpressionBase owner)
{
string name = (string)value;
var expression = owner as BindingExpression;
if (expression.ResolvedSource is PObject pObj)
{
var renderer = pObj.GetRenderer();
if (renderer != null)
{
var scope = LogicalTreeHelperEx.FindLogicalParents <INameScope>(renderer.Element).FirstOrDefault();
if (pObj.Equals(scope.GetOwner(name)))
{
return(base.Validate(true, cultureInfo, owner));
}
if (string.IsNullOrEmpty(name))
{
scope.Unregister(pObj);
return(base.Validate(true, cultureInfo, owner));
}
if (StringRule.IsValidName(name ?? "", true))
{
if (scope.HasName(name))
{
MessageBox.Show($"'{name}'는 이미 정의된 이름입니다.", "DeXign", MessageBoxButton.OK, MessageBoxImage.Asterisk);
expression.UpdateTarget();
}
else
{
scope.Register(pObj, name);
return(base.Validate(true, cultureInfo, owner));
}
}
}
else
{
MessageBox.Show($"네임 스코프를 찾을 수 없습니다.", "DeXign");
}
}
return(base.Validate(false, cultureInfo, owner));
}
public override ValidationResult Validate(object value, CultureInfo cultureInfo)
{
return(new ValidationResult(
StringRule.IsValidNamespace((string)value ?? ""), null));
}