public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (context == null)
{
return(null);
}
if (context.Instance == null)
{
return(null);
}
if (value.GetType() == typeof(string))
{
string text = Convert.ToString(value);
// "" or "(None)"
if (text == string.Empty || text == Resources.TEXT_NONE_BR)
{
if (context.PropertyDescriptor.ComponentType == typeof(TopologyRule))
{
TopologyRule topologyRule = (TopologyRule)context.Instance;
switch (context.PropertyDescriptor.Name)
{
case "OriginSubtype":
return(topologyRule.AllOriginSubtypes ? 0 : -1);
case "DestinationSubtype":
return(topologyRule.AllDestinationSubtypes ? 0 : -1);
default:
return(-1);
}
}
return(-1);
}
// "(Class)"
if (text == Resources.TEXT_CLASS_BR)
{
return(0);
}
// Subtype Name
ObjectClass objectClass = this.GetObjectClass(context);
if (objectClass == null)
{
return(-1);
}
Subtype subtype = objectClass.FindSubtype(text);
if (subtype == null)
{
return(-1);
}
return(subtype.SubtypeCode);
}
return(base.ConvertFrom(context, culture, value));
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (context == null)
{
return(null);
}
if (context.Instance == null)
{
return(null);
}
if (destinationType == null)
{
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(string))
{
if (value.GetType() == typeof(int))
{
int id = Convert.ToInt32(value);
ObjectClass objectClass = this.GetObjectClass(context);
if (objectClass == null)
{
return(Resources.TEXT_NONE_BR);
}
List <Subtype> subtypes = objectClass.GetSubtypes();
if (subtypes.Count == 0)
{
if (id == -1)
{
return(Resources.TEXT_NONE_BR);
}
return(Resources.TEXT_CLASS_BR);
}
if (context.PropertyDescriptor.ComponentType == typeof(TopologyRule))
{
TopologyRule topologyRule = (TopologyRule)context.Instance;
switch (context.PropertyDescriptor.Name)
{
case "OriginSubtype":
if (topologyRule.OriginSubtype == 0 && topologyRule.AllOriginSubtypes)
{
return(Resources.TEXT_NONE_BR);
}
break;
case "DestinationSubtype":
if (topologyRule.DestinationSubtype == 0 && topologyRule.AllDestinationSubtypes)
{
return(Resources.TEXT_NONE_BR);
}
break;
}
}
Subtype subtype = objectClass.FindSubtype(id);
if (subtype == null)
{
return(Resources.TEXT_NONE_BR);
}
return(subtype.SubtypeName);
}
}
return(base.ConvertTo(context, culture, value, destinationType));
}
