internal int Compare(Graphic x, Graphic y)
{
var o1 = x.Attributes[Field]; // get primitive value
var o2 = y.Attributes[Field]; // get primitive value
if (isDynamicCodedValue)
{
o1 = DynamicCodedValueSource.CodedValueNameLookup(TypeIDField, Field, x, dynamicCodedValueSource);
o2 = DynamicCodedValueSource.CodedValueNameLookup(TypeIDField, Field, y, dynamicCodedValueSource);
}
if (isCodedValue || isTypeIDField)
{
o1 = CodedValueSources.CodedValueNameLookup(Field, x, codedValueSources);
o2 = CodedValueSources.CodedValueNameLookup(Field, y, codedValueSources);
}
return(comparer.Compare(o1, o2)); // compare primitives
}
internal int Compare(Graphic x, Graphic y)
{
var o1 = x.Attributes[Field]; // get primitive value
var o2 = y.Attributes[Field]; // get primitive value
if (o1 == null && o2 == null)
{
return(0);
}
else if (o1 != null && o2 == null)
{
return(1);
}
else if (o1 == null && o2 != null)
{
return(-1);
}
var type = NonNullableType(DataType);
var t1 = o1.GetType();
var t2 = o2.GetType();
if (type == typeof(DateTime))
{
if (t1 != type && t2 != type)
{
return(0);
}
if (t1 != type && t2 == type)
{
return(-1);
}
if (t1 == type && t2 != type)
{
return(1);
}
}
else
{
if (t1 != type)
{
o1 = Convert.ChangeType(o1, type);
}
if (t2 != type)
{
o2 = Convert.ChangeType(o2, type);
}
}
if (isDynamicCodedValue)
{
o1 = DynamicCodedValueSource.CodedValueNameLookup(TypeIDField, Field, x, dynamicCodedValueSource);
o2 = DynamicCodedValueSource.CodedValueNameLookup(TypeIDField, Field, y, dynamicCodedValueSource);
}
else if (isCodedValue || isTypeIDField)
{
o1 = CodedValueSources.CodedValueNameLookup(Field, x, codedValueSources);
o2 = CodedValueSources.CodedValueNameLookup(Field, y, codedValueSources);
}
return(comparer.Compare(o1, o2)); // compare primitives
}