/// Runs in CustomDataAnnotationsModelMetadataProvider
public static bool CreateMetadata(ModelMetadata modelMetadata, IEnumerable <Attribute> attributes)
{
RestrictedAttribute restrictedAttribute = attributes.OfType <RestrictedAttribute>().FirstOrDefault();
if (restrictedAttribute != null)
{
modelMetadata.AdditionalValues.Add("Restricted", restrictedAttribute.Roles);
return(true);
}
return(false);
}
protected override ModelMetadata CreateMetadata(IEnumerable <Attribute> attributes,
Type containerType,
Func <object> modelAccessor,
Type modelType,
string propertyName)
{
ModelMetadata metadata = base.CreateMetadata(attributes,
containerType,
modelAccessor,
modelType,
propertyName);
// Prefer [Display(Name="")] to [DisplayName]
DisplayAttribute display = attributes.OfType <DisplayAttribute>().FirstOrDefault();
if (display != null)
{
string name = display.GetName();
if (name != null)
{
metadata.DisplayName = name;
}
// There was no 3.5 way to set these values
metadata.Description = display.GetDescription();
metadata.ShortDisplayName = display.GetShortName();
metadata.Watermark = display.GetPrompt();
}
// Prefer [Editable] to [ReadOnly]
EditableAttribute editable = attributes.OfType <EditableAttribute>().FirstOrDefault();
if (editable != null)
{
metadata.IsReadOnly = !editable.AllowEdit;
}
// If [DisplayFormat(HtmlEncode=false)], set a data type name of "Html"
// (if they didn't already set a data type)
DisplayFormatAttribute displayFormat = attributes.OfType <DisplayFormatAttribute>().FirstOrDefault();
if (displayFormat != null &&
!displayFormat.HtmlEncode &&
String.IsNullOrWhiteSpace(metadata.DataTypeName))
{
metadata.DataTypeName = DataType.Html.ToString();
}
// Title Attribute
TitleAttribute titleAttribute = attributes.OfType <TitleAttribute>().FirstOrDefault();
if (titleAttribute != null)
{
// metadata.AdditionalValues.Add("Title", titleAttribute.Title);
metadata.DisplayName = titleAttribute.Title;
}
// Section Attribute
List <SectionAttribute> sectionAttributeList = attributes.OfType <SectionAttribute>().ToList();
sectionAttributeList.Sort((x, y) => x.DisplayOrder.CompareTo(y.DisplayOrder));
if (sectionAttributeList.Count > 0)
{
metadata.AdditionalValues.Add("SectionList", sectionAttributeList);
}
// Width
WidthAttribute widthAttribute = attributes.OfType <WidthAttribute>().FirstOrDefault();
if (widthAttribute != null)
{
metadata.AdditionalValues.Add("Width", widthAttribute.Columns);
}
// EndRow
StartRowAttribute endRowAttribute = attributes.OfType <StartRowAttribute>().FirstOrDefault();
if (endRowAttribute != null)
{
metadata.AdditionalValues.Add("StartRow", true);
}
// Button
List <ButtonAttribute> buttonAttributeList = attributes.OfType <ButtonAttribute>().ToList();
buttonAttributeList.Sort((x, y) => x.DisplayOrder.CompareTo(y.DisplayOrder));
if (buttonAttributeList.Count > 0)
{
metadata.AdditionalValues.Add("ButtonList", buttonAttributeList);
}
// ClientData
if (containerType != null)
{
PropertyInfo propertyInfo = containerType.GetProperty(propertyName);
if (propertyInfo != null)
{
List <AddDataAttributeAttribute> addDataAttributeList = propertyInfo.GetCustomAttributes <AddDataAttributeAttribute>().ToList();
if (addDataAttributeList.Count > 0)
{
metadata.AdditionalValues.Add("AddDataAttributeList", addDataAttributeList);
}
List <AddAttributeAttribute> addAttributeAttributeList = propertyInfo.GetCustomAttributes <AddAttributeAttribute>().ToList();
if (addAttributeAttributeList.Count > 0)
{
metadata.AdditionalValues.Add("AddAttributeAttributeList", addAttributeAttributeList);
}
}
}
// restricted
RestrictedAttribute.CreateMetadata(metadata, attributes);
return(metadata);
}
