internal static LabelValidationMetadata ParseMetadata(string bindingPath, object entity)
{
if (entity != null && !string.IsNullOrEmpty(bindingPath))
{
PropertyInfo property = GetProperty(GetCustomOrCLRType(entity), bindingPath);
if (property != null)
{
var validationMetadata = new LabelValidationMetadata();
foreach (object obj in property.GetCustomAttributes(false))
{
if (obj is RequiredAttribute)
{
validationMetadata.IsRequired = true;
}
else
{
var displayAttribute = obj as DisplayAttribute;
if (displayAttribute != null)
{
validationMetadata.Name = displayAttribute.GetDescription();
validationMetadata.Caption = displayAttribute.GetName();
}
}
}
if (validationMetadata.Caption == null)
{
validationMetadata.Caption = property.Name;
}
return(validationMetadata);
}
}
return((LabelValidationMetadata)null);
}
internal static LabelValidationMetadata ParseMetadata(string bindingPath, object entity)
{
if (entity != null && !string.IsNullOrEmpty(bindingPath))
{
PropertyInfo property = GetProperty(GetCustomOrCLRType(entity), bindingPath);
if (property != null)
{
var validationMetadata = new LabelValidationMetadata();
foreach (object obj in property.GetCustomAttributes(false))
{
if (obj is RequiredAttribute)
{
validationMetadata.IsRequired = true;
}
else
{
var displayAttribute = obj as DisplayAttribute;
if (displayAttribute != null)
{
validationMetadata.Name = displayAttribute.GetDescription();
validationMetadata.Caption = displayAttribute.GetName();
}
}
}
if (validationMetadata.Caption == null)
validationMetadata.Caption = property.Name;
return validationMetadata;
}
}
return (LabelValidationMetadata)null;
}
internal static void SetValidationMetadata(DependencyObject inputControl, LabelValidationMetadata value)
{
if (inputControl == null)
{
throw new ArgumentNullException("inputControl");
}
inputControl.SetValue(LabelValidationHelper.ValidationMetadataProperty, (object)value);
}
internal static LabelValidationMetadata ParseMetadata(FrameworkElement element, bool forceUpdate, out object entity, out BindingExpression bindingExpression)
{
entity = (object)null;
bindingExpression = (BindingExpression)null;
if (element == null)
{
return((LabelValidationMetadata)null);
}
if (!forceUpdate)
{
LabelValidationMetadata validationMetadata = element.GetValue(LabelValidationHelper.ValidationMetadataProperty) as LabelValidationMetadata;
if (validationMetadata != null)
{
return(validationMetadata);
}
}
foreach (FieldInfo fieldInfo in element.GetType().GetFields(BindingFlags.Static | BindingFlags.Public | BindingFlags.FlattenHierarchy))
{
if (fieldInfo.FieldType == typeof(DependencyProperty))
{
BindingExpression bindingExpression1 = element.GetBindingExpression((DependencyProperty)fieldInfo.GetValue((object)null));
if (bindingExpression1 != null && bindingExpression1.ParentBinding != null && bindingExpression1.ParentBinding.Path != null)
{
entity = bindingExpression1.DataItem ?? element.DataContext;
if (entity != null)
{
if (bindingExpression1.ParentBinding.Mode == BindingMode.TwoWay)
{
bindingExpression = bindingExpression1;
break;
}
else if (bindingExpression == null || string.Compare(bindingExpression1.ParentBinding.Path.Path, bindingExpression.ParentBinding.Path.Path, StringComparison.Ordinal) < 0)
{
bindingExpression = bindingExpression1;
}
}
}
}
}
if (bindingExpression == null)
{
return(null);
}
LabelValidationMetadata validationMetadata1 = ParseMetadata(bindingExpression.ParentBinding.Path.Path, entity);
element.SetValue(ValidationMetadataProperty, (object)validationMetadata1);
return(validationMetadata1);
}
private void LoadMetadata(bool forceUpdate)
{
LabelValidationMetadata validationMetadata = null;
object entity;
BindingExpression bindingExpression;
if (!string.IsNullOrEmpty(PropertyPath))
{
validationMetadata = LabelValidationHelper.ParseMetadata(PropertyPath, DataContext);
}
else if (Target != null)
{
validationMetadata = LabelValidationHelper.ParseMetadata(Target, forceUpdate, out entity, out bindingExpression);
}
if (ValidationMetadata == validationMetadata)
{
return;
}
ValidationMetadata = validationMetadata;
if (ValidationMetadata != null)
{
string caption = ValidationMetadata.Caption;
if (caption != null && _canContentUseMetaData)
{
SetContentInternally(caption);
}
}
else if (_canContentUseMetaData)
{
SetContentInternally(null);
}
if (_isRequiredOverridden || (_requiredHasBeenSet && !_requiredSetByMetadata))
{
return;
}
bool flag = ValidationMetadata != null && ValidationMetadata.IsRequired;
_requiredSetByMetadata = true;
SetValue(IsRequiredProperty, flag);
}
internal static void SetValidationMetadata(DependencyObject inputControl, LabelValidationMetadata value)
{
if (inputControl == null)
throw new ArgumentNullException("inputControl");
inputControl.SetValue(LabelValidationHelper.ValidationMetadataProperty, (object)value);
}
private void LoadMetadata(bool forceUpdate)
{
LabelValidationMetadata validationMetadata = null;
object entity;
BindingExpression bindingExpression;
if (!string.IsNullOrEmpty(PropertyPath))
validationMetadata = LabelValidationHelper.ParseMetadata(PropertyPath, DataContext);
else if (Target != null)
validationMetadata = LabelValidationHelper.ParseMetadata(Target, forceUpdate, out entity, out bindingExpression);
if (ValidationMetadata == validationMetadata)
return;
ValidationMetadata = validationMetadata;
if (ValidationMetadata != null)
{
string caption = ValidationMetadata.Caption;
if (caption != null && _canContentUseMetaData)
SetContentInternally(caption);
}
else if (_canContentUseMetaData)
SetContentInternally(null);
if (_isRequiredOverridden || (_requiredHasBeenSet && !_requiredSetByMetadata))
return;
bool flag = ValidationMetadata != null && ValidationMetadata.IsRequired;
_requiredSetByMetadata = true;
SetValue(IsRequiredProperty, flag);
}
