public virtual void CascadeRemove(MetadataField item)
{
Requires <InvalidKeyException> .GreaterThan(item.Id, 0);
Log.Verbose("CascadeRemove({0})", item.ToString());
//1==>X
//1<==>X
base.CascadeRemove(item);
}
/// <summary>
/// Determine the text to be shown.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>
/// The text
/// </returns>
protected override string GetText(WriterContext context)
{
DataElement data = context.CurrentDataElement;
switch (MetadataField)
{
case MetadataField.Position:
return((data.Position + 1).ToString(CultureInfo.InvariantCulture));
default:
throw new InvalidOperationException(MetadataField.ToString());
}
}
public static string GetLabel(MetadataField metadataField)
{
MemberInfo memberInfo = typeof(MetadataField).GetMember(metadataField.ToString())
.FirstOrDefault();
if (memberInfo == null)
{
return(null);
}
DisplayAttribute attribute = (DisplayAttribute)
memberInfo.GetCustomAttributes(typeof(DisplayAttribute), false)
.Single();
return(attribute.Name);
}