The following statement is not returning distinct values, but the whole list:
public ObservableCollection<MasterPartsList> ParentAssemblyBOM
{
get
{
var enumerable = this._parentAssemblyBOM
.Where(parent => parent.isAssy == true).Distinct();
return new ObservableCollection<MasterPartsList>(enumerable) ;
}
Truly, I should only be able to tell that the object is unique because this._parentAssemblyBOM.partNumber would be the distinct property. How do I work in this logic to yield the correct results?
Thanks in advance!
Try grouping by the identifier (in your case part number) and then select the first of the group:
var enumerable = this._parentAssemblyBOM
.Where(parent => parent.isAssy == true)
.GroupBy(x => x.partNumber)
.Select(x => x.FirstOrDefault());
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