According to the characteristics to determine whether a combination key repeat-CodePudding

 
UploadDataList 
List KeyList=new List (a); 
The foreach (PropertyInfo PI in propertys) 
{
The KeyAttribute KeyAttribute=(KeyAttribute Attribute. GetCustomAttribute (t.G etType (), typeof (KeyAttribute)); 
If (keyAttribute!=null) 
{
KeyList. Add (t.G etType (). The Name). 
} 
}

CodePudding user response:

Failed to understand your code, but to tell if repeated, can use HashSet,

 var keyList=new HashSet (a); 
The foreach (PropertyInfo PI in properties) 
{
Var keyAttribute=(keyAttribute Attribute. GetCustomAttribute (t.G etType (), typeof (keyAttribute)); 
If (keyAttribute!=null) 
{
if (! KeyList. Add (t.G etType (). The Name)) 
{
Throw new InvalidOperationException ($" Key '{t.G etType (). The Name}' repeat "); 
} 
} 
}

CodePudding user response:

reference 1st floor github_36000833 response:

failed to understand your code, but to tell if repeated, can use HashSet,

 var keyList=new HashSet (a); 
The foreach (PropertyInfo PI in properties) 
{
Var keyAttribute=(keyAttribute Attribute. GetCustomAttribute (t.G etType (), typeof (keyAttribute)); 
If (keyAttribute!=null) 
{
if (! KeyList. Add (t.G etType (). The Name)) 
{
Throw new InvalidOperationException ($" Key '{t.G etType (). The Name}' repeat "); 
} 
} 
}

My game code is don't know how to write write casually, do not have reference value, only to find the key features of the name is
Such as I have uploadDataList, need reflection with the key characteristic of attribute, and then determine whether the key value combination repeat, repeat the pulls a list
Var repetitionList=uploadDataList. GroupBy (m=& gt; New {NCMP=m.N CMP, PINO=m.P INO}) Where (g=& gt; Right to mount () & gt; 1). Select (y=& gt; Y.K ey). ToList ();