public FieldValidationOutput CompareStrings(string s1, string s2)
{
var result = new FieldValidationOutput();
result.IsValid = (s1 == s2);
result.ErrorMessage = $"{s1} {(result.IsValid ? "==" : "!=")} {s2}";
return(result);
}
public FieldValidationOutput CompareDoubles(double d1, double d2, string errorMsgIfDifferent)
{
// comparing doubles can produce unexpected results.
// to understand more: https://floating-point-gui.de/errors/comparison/
var result = new FieldValidationOutput();
result.IsValid = NearlyEqual(d1, d2, 0.0001);
if (!result.IsValid)
{
if (string.IsNullOrWhiteSpace(errorMsgIfDifferent))
{
result.ErrorMessage = $"Values are different: {d1.ToString()}, {d2.ToString()}";
}
else
{
result.ErrorMessage = errorMsgIfDifferent;
}
}
return(result);
}