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ViewModel中通过 hash 去重
public class Order_Detail_ViewModel : Object{
public string SAP_PickLocation { get; set; }
public string SAP_Material_ID { get; set; }
public string StorageSectionCode { get; set; }
public override bool Equals(object obj){
var obj1 = obj as Order_Detail_ViewModel;
if(obj1 == null) {
return false;
}
return this.SAP_Material_ID == obj1.SAP_Material_ID && this.SAP_PickLocation == obj1.SAP_PickLocation && this.StorageSectionCode == obj1.StorageSectionCode;
}
public override int GetHashCode(){
return (SAP_PickLocation + SAP_Material_ID + StorageSectionCode).GetHashCode();
}
}然后 ().distinct()