Posts by Roger Silva • 23 points

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  Q: 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…

  c# asp.net-mvc sql-server

  asked 6 years, 4 months ago Roger Silva 23

• 0

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  1

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  Q: 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 6 years, 6 months ago Roger Silva 23