Posts by Roger Silva • 23 points
2 posts
-
0
votes1
answer930
viewsQ: System.Nullreferenceexception: 'Undefined object reference for an instance of an object
I was trying to run my database but this error appears. System.Nullreferenceexception: 'Undefined object reference for an instance of an object. con era null using System; using…
-
0
votes1
answer439
viewsQ: how to refer by name or half of the name in the birthday management list c# console application?
So I’m creating a birthday management file, where I can add and query people, but I’m having a hard time making a code to query person by name, but doing with what appears to the person and choose…
c#asked Roger Silva 23