protected override ModelMetadata CreateMetadata(IEnumerable <Attribute> attributes, Type containerType, Func <object> modelAccessor, Type modelType, string propertyName)
{
List <Attribute> attributeList = new List <Attribute>(attributes);
DisplayColumnAttribute displayColumnAttribute = attributeList.OfType <DisplayColumnAttribute>().FirstOrDefault();
DataAnnotationsModelMetadata result = new DataAnnotationsModelMetadata(this, containerType, modelAccessor, modelType, propertyName, displayColumnAttribute);
// Do [HiddenInput] before [UIHint], so you can override the template hint
HiddenInputAttribute hiddenInputAttribute = attributeList.OfType <HiddenInputAttribute>().FirstOrDefault();
if (hiddenInputAttribute != null)
{
result.TemplateHint = "HiddenInput";
result.HideSurroundingHtml = !hiddenInputAttribute.DisplayValue;
}
// We prefer [UIHint("...", PresentationLayer = "MVC")] but will fall back to [UIHint("...")]
IEnumerable <UIHintAttribute> uiHintAttributes = attributeList.OfType <UIHintAttribute>();
UIHintAttribute uiHintAttribute = uiHintAttributes.FirstOrDefault(a => String.Equals(a.PresentationLayer, "MVC", StringComparison.OrdinalIgnoreCase))
?? uiHintAttributes.FirstOrDefault(a => String.IsNullOrEmpty(a.PresentationLayer));
if (uiHintAttribute != null)
{
result.TemplateHint = uiHintAttribute.UIHint;
}
DataTypeAttribute dataTypeAttribute = attributeList.OfType <DataTypeAttribute>().FirstOrDefault();
if (dataTypeAttribute != null)
{
result.DataTypeName = dataTypeAttribute.GetDataTypeName();
}
ReadOnlyAttribute readOnlyAttribute = attributeList.OfType <ReadOnlyAttribute>().FirstOrDefault();
if (readOnlyAttribute != null)
{
result.IsReadOnly = readOnlyAttribute.IsReadOnly;
}
DisplayFormatAttribute displayFormatAttribute = attributeList.OfType <DisplayFormatAttribute>().FirstOrDefault();
if (displayFormatAttribute == null && dataTypeAttribute != null)
{
displayFormatAttribute = dataTypeAttribute.DisplayFormat;
}
if (displayFormatAttribute != null)
{
result.NullDisplayText = displayFormatAttribute.NullDisplayText;
result.DisplayFormatString = displayFormatAttribute.DataFormatString;
result.ConvertEmptyStringToNull = displayFormatAttribute.ConvertEmptyStringToNull;
if (displayFormatAttribute.ApplyFormatInEditMode)
{
result.EditFormatString = displayFormatAttribute.DataFormatString;
}
}
ScaffoldColumnAttribute scaffoldColumnAttribute = attributeList.OfType <ScaffoldColumnAttribute>().FirstOrDefault();
if (scaffoldColumnAttribute != null)
{
result.ShowForDisplay = result.ShowForEdit = scaffoldColumnAttribute.Scaffold;
}
DisplayNameAttribute displayNameAttribute = attributeList.OfType <DisplayNameAttribute>().FirstOrDefault();
if (displayNameAttribute != null)
{
result.DisplayName = displayNameAttribute.DisplayName;
}
RequiredAttribute requiredAttribute = attributeList.OfType <RequiredAttribute>().FirstOrDefault();
if (requiredAttribute != null)
{
result.IsRequired = true;
}
return(result);
}
protected override ModelMetadata CreateMetadata(IEnumerable <Attribute> attributes, Type containerType, Func <object> modelAccessor, Type modelType, string propertyName)
{
List <Attribute> attributeList = new List <Attribute>(attributes);
DisplayColumnAttribute displayColumnAttribute = attributeList.OfType <DisplayColumnAttribute>().FirstOrDefault();
DataAnnotationsModelMetadata result = new DataAnnotationsModelMetadata(this, containerType, modelAccessor, modelType, propertyName, displayColumnAttribute);
// Do [HiddenInput] before [UIHint], so you can override the template hint
HiddenInputAttribute hiddenInputAttribute = attributeList.OfType <HiddenInputAttribute>().FirstOrDefault();
if (hiddenInputAttribute != null)
{
result.TemplateHint = "HiddenInput";
result.HideSurroundingHtml = !hiddenInputAttribute.DisplayValue;
}
// We prefer [UIHint("...", PresentationLayer = "MVC")] but will fall back to [UIHint("...")]
IEnumerable <UIHintAttribute> uiHintAttributes = attributeList.OfType <UIHintAttribute>();
UIHintAttribute uiHintAttribute = uiHintAttributes.FirstOrDefault(a => String.Equals(a.PresentationLayer, "MVC", StringComparison.OrdinalIgnoreCase))
?? uiHintAttributes.FirstOrDefault(a => String.IsNullOrEmpty(a.PresentationLayer));
if (uiHintAttribute != null)
{
result.TemplateHint = uiHintAttribute.UIHint;
}
EditableAttribute editable = attributes.OfType <EditableAttribute>().FirstOrDefault();
if (editable != null)
{
result.IsReadOnly = !editable.AllowEdit;
}
else
{
ReadOnlyAttribute readOnlyAttribute = attributeList.OfType <ReadOnlyAttribute>().FirstOrDefault();
if (readOnlyAttribute != null)
{
result.IsReadOnly = readOnlyAttribute.IsReadOnly;
}
}
DataTypeAttribute dataTypeAttribute = attributeList.OfType <DataTypeAttribute>().FirstOrDefault();
DisplayFormatAttribute displayFormatAttribute = attributeList.OfType <DisplayFormatAttribute>().FirstOrDefault();
SetFromDataTypeAndDisplayAttributes(result, dataTypeAttribute, displayFormatAttribute);
ScaffoldColumnAttribute scaffoldColumnAttribute = attributeList.OfType <ScaffoldColumnAttribute>().FirstOrDefault();
if (scaffoldColumnAttribute != null)
{
result.ShowForDisplay = result.ShowForEdit = scaffoldColumnAttribute.Scaffold;
}
DisplayAttribute display = attributes.OfType <DisplayAttribute>().FirstOrDefault();
string name = null;
if (display != null)
{
result.Description = display.GetDescription();
result.ShortDisplayName = display.GetShortName();
result.Watermark = display.GetPrompt();
result.Order = display.GetOrder() ?? ModelMetadata.DefaultOrder;
name = display.GetName();
}
if (name != null)
{
result.DisplayName = name;
}
else
{
DisplayNameAttribute displayNameAttribute = attributeList.OfType <DisplayNameAttribute>().FirstOrDefault();
if (displayNameAttribute != null)
{
result.DisplayName = displayNameAttribute.DisplayName;
}
}
RequiredAttribute requiredAttribute = attributeList.OfType <RequiredAttribute>().FirstOrDefault();
if (requiredAttribute != null)
{
result.IsRequired = true;
}
return(result);
}
