- using System; 
-   
- public class Entity { 
- 	public int EntityID { get; set; } 
- 	public string EntityName { get; set; } 
-   
- 	public override int GetHashCode() { 
- 		unchecked { 
- 			int hash = 15485863; 
- 			int multiplier = 1299709; 
-   
- 			hash = hash * multiplier + EntityID.GetHashCode(); 
- 			hash = hash * multiplier + (EntityName != null ? EntityName.GetHashCode() : 0); 
-   
- 			return hash; 
- 		} 
- 	} 
- } 
-   
- public class Test 
- { 
- 	public static void Main() 
- 	{ 
- 		var hash1 = new Entity { EntityID = 1337, EntityName = "" }.GetHashCode(); 
- 		var hash2 = new Entity { EntityID = 1337, EntityName = null }.GetHashCode(); 
-   
- 		Console.WriteLine(hash1 == hash2); 
- 	} 
- } 
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