public static bool isDefaultLeafValue(object from, string propertyName, object leafValue, LeafDefaultSet LeafDefaultSet)
{
// check the attribute
FieldInfo fieldInfo = from.GetType().GetField(propertyName);
if (fieldInfo == null) return false;
object[] dmas = fieldInfo.GetCustomAttributes(typeof(DataMemberAttribute), true);
//check whether we are emitting default values
if (dmas.Length == 0 || ((DataMemberAttribute)dmas[0]).EmitDefaultValue) return false;
if (leafValue == null) return true;
Type leafType=leafValue.GetType();
if (Nullable.GetUnderlyingType(leafType)!=null)
{
leafType=Nullable.GetUnderlyingType(leafType);
}
if (NumberTypes.Contains(leafType))
return leafValue.Equals((int)0) || leafValue.Equals((double)0.0) || leafValue.Equals((uint)0) || leafValue.Equals((float)0);
if (leafType == typeof(bool) || leafType == typeof(Boolean)) return !((bool)leafValue);
return false;
}
public static bool isDefaultLeafValue(object from, string propertyName, object leafValue, LeafDefaultSet LeafDefaultSet)
{
// check the attribute
FieldInfo fieldInfo = from.GetType().GetField(propertyName);
if (fieldInfo == null)
{
return(false);
}
object[] dmas = fieldInfo.GetCustomAttributes(typeof(DataMemberAttribute), true);
//check whether we are emitting default values
if (dmas.Length == 0 || ((DataMemberAttribute)dmas[0]).EmitDefaultValue)
{
return(false);
}
if (leafValue == null)
{
return(true);
}
Type leafType = leafValue.GetType();
if (Nullable.GetUnderlyingType(leafType) != null)
{
leafType = Nullable.GetUnderlyingType(leafType);
}
if (NumberTypes.Contains(leafType))
{
return(leafValue.Equals((int)0) || leafValue.Equals((double)0.0) || leafValue.Equals((uint)0) || leafValue.Equals((float)0));
}
if (leafType == typeof(bool) || leafType == typeof(Boolean))
{
return(!((bool)leafValue));
}
return(false);
}
