Answers for "how to check exception error in c#"

C#
1

test how catch exception c#

[TestMethod]
[ExpectedException(typeof(ArgumentException),
    "A userId of null was inappropriately allowed.")]
public void NullUserIdInConstructor()
{
   LogonInfo logonInfo = new LogonInfo(null, "P@ss0word");
}
Posted by: Guest on March-02-2020
0

how to get error code from exception in c#

try {
	// some operation causing an exception
}
catch (SqlException e) {
	if (e.ErrorCode == 0x80131904)
      	// ...
		return null;
	throw;
}
Posted by: Guest on March-25-2021

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