private bool TryCreateImplicitSorting(
PropertyInfo property,
[NotNullWhen(true)] out SortOperationDefintion?definition)
{
Type type = property.PropertyType;
if (type.IsGenericType &&
System.Nullable.GetUnderlyingType(type) is { } nullableType)
{
type = nullableType;
}
if (typeof(IComparable).IsAssignableFrom(type))
{
definition = SortOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
if (Context.TypeInspector.TryCreateTypeInfo(type, out ITypeInfo? typeInfo) &&
typeInfo.GetExtendedType()?.IsList is {} isList)
{
if (type.IsClass && !isList)
{
definition = SortObjectOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
}
definition = null;
return(false);
}
private bool TryCreateImplicitSorting(
PropertyInfo property,
out SortOperationDefintion definition)
{
Type type = property.PropertyType;
if (type.IsGenericType &&
System.Nullable.GetUnderlyingType(type) is Type nullableType)
{
type = nullableType;
}
if (typeof(IComparable).IsAssignableFrom(type))
{
definition = SortOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
if (type.IsClass && !DotNetTypeInfoFactory.IsListType(type))
{
definition = SortObjectOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
definition = null;
return(false);
}
public ISortObjectOperationDescriptor <TObject> SortableObject <TObject>(
Expression <Func <T, TObject> > property)
where TObject : class
{
if (property.ExtractMember() is PropertyInfo p)
{
return(Fields.GetOrAddDescriptor(p,
() => SortObjectOperationDescriptor <TObject> .CreateOperation(p, Context)));
}
// TODO : resources
throw new ArgumentException(
"Only properties are allowed for input types.",
nameof(property));
}
public ISortObjectOperationDescriptor <TObject> SortableObject <TObject>(
Expression <Func <T, TObject> > property)
where TObject : class
{
if (property.ExtractMember() is PropertyInfo p)
{
return(Fields.GetOrAddDescriptor(p,
() => SortObjectOperationDescriptor <TObject> .CreateOperation(p, Context)));
}
// TODO : resources
throw new ArgumentException(
SortingResources.SortInputTypeDescriptor_Ignore_OnlyPopertiesAreAllowed,
nameof(property));
}
private bool TryCreateImplicitSorting(
PropertyInfo property,
out SortOperationDefintion definition)
{
if (typeof(IComparable).IsAssignableFrom(property.PropertyType))
{
definition = SortOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
if (
property.PropertyType.IsClass &&
!typeof(IEnumerable <>).IsAssignableFrom(property.PropertyType))
{
definition = SortObjectOperationDescriptor
.CreateOperation(property, Context)
.CreateDefinition();
return(true);
}
definition = null;
return(false);
}
