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GeneralRe: In OO, How to handle the object parameter of a method Pin
Rob Grainger6-Jul-21 11:09
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AnswerRe: In OO, How to handle the object parameter of a method Pin
Bohdan Stupak6-Apr-21 22:20
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GeneralRe: In OO, How to handle the object parameter of a method Pin
Rob Grainger6-Jul-21 11:11
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GeneralRe: In OO, How to handle the object parameter of a method Pin
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QuestionHow can a method return a validation result Pin
codecs112-Mar-21 19:54
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AnswerRe: How can a method return a validation result Pin
Gerry Schmitz13-Mar-21 7:56
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AnswerRe: How can a method return a validation result Pin
Mycroft Holmes13-Mar-21 11:13
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AnswerRe: How can a method return a validation result Pin
Eddy Vluggen13-Mar-21 12:11
professionalEddy Vluggen13-Mar-21 12:11 
C#
public class StudentCriteria
{
    public string Name { set; get; }
    public int? Age { set; get; }
    public DateTime? BeginRegisterDate { set; get; }
    public DateTime? EndRegisterDate { set; get; }

    public ValidationResult Validate ()
    {
        ValidationResult result = new ValidationResult();

        if (Age > 0)
                result.ErrorInfo.Add("Nope, too young.");

        // other checks, adding strings to ErrorInfo.

        return result;
    }
}
//Moveover, we should validate the input parameter StudentCriteria , so we call the following method in FindStudents(...)
//ValidationResult Validate(StudentCriteria sc);
//in which ValidationResult is an object representing the validation result, something like that:
public class ValidationResult
{
    public bool Success { get { return Convert.ToString(ErrorInfo).Length > 0; } }
    public List<String> ErrorInfo { set; get; }
}



codecs1 wrote:
All 'Error' information will be contained in ValidationResult and return to FindStudents
No.

You may validate you search-criteria, but "FindStudents" should not be linked to that. Reading from a db has nothing to do with search-criteria. Decouple those. Before calling "FindStudents", confirm and validate your input, before passing to a database.
Bastard Programmer from Hell Suspicious | :suss:
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

AnswerRe: How can a method return a validation result Pin
codecs113-Mar-21 19:02
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AnswerRe: How can a method return a validation result Pin
Richard Deeming14-Mar-21 22:21
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GeneralRe: How can a method return a validation result Pin
codecs116-Mar-21 0:15
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Questionwhat is types of Architecturel rendering ? Pin
Member 1506545021-Feb-21 23:46
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AnswerRe: what is types of Architecturel rendering ? Pin
Victor Nijegorodov22-Feb-21 1:19
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QuestionHow to store data to be able to report on it. Pin
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GeneralRe: How to store data to be able to report on it. Pin
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GeneralRe: How to store data to be able to report on it. Pin
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QuestionWhat are some intuitive ways to visually show communication packets between several devices, as well as general debug information? Pin
arnold_w1-Feb-21 7:47
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QuestionSystem Monitoring Pin
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Richard MacCutchan24-Jan-21 22:06
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QuestionShould this be its own class? Pin
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