private bool ValidateInputs(List <StudentInformation> studentList, string id, string name, string mobile, int age, double gpa)
{
string studentID = id;
string studentName = name;
string studentMobile = mobile;
int studentAge = age;
double studentGPA = gpa;
if (studentID.Length != 4)
{
ShowErrorMessage("ID should be of 4 characters!");
return(false);
}
if (studentName.Length == 0)
{
ShowErrorMessage("Name can not be empty!");
return(false);
}
if (studentMobile.Length != 11)
{
ShowErrorMessage("Mobile number should be of 11 characters!");
return(false);
}
if (CustomLibrary.HasDuplicateID(list: studentList, studentID))
{
ShowErrorMessage("ID exists already!");
return(false);
}
if (CustomLibrary.HasDuplicateMobile(list: studentList, studentMobile))
{
ShowErrorMessage("Mobile exists already!");
return(false);
}
if (studentAge == 0)
{
ShowErrorMessage("Age can not be 0!");
return(false);
}
if (studentGPA <= 0 || studentGPA > 4)
{
ShowErrorMessage("GPA should be between 0 and 4!");
return(false);
}
return(true);
}
public static string DisplayMaxMinAvgTotal(List <StudentInformation> studentList)
{
string output = "\n\nDetails (Max, Min, Avg, Total):";
if (studentList.Count > 0)
{
output = "\nStudent : " + CustomLibrary.FindMaxInList(studentList).name
+ " - Max GPA: " + CustomLibrary.FindMaxInList(studentList).gpa
+ "\nStudent : " + CustomLibrary.FindMinInList(studentList).name
+ " - Min GPS: " + CustomLibrary.FindMinInList(studentList).gpa
+ "\nAverage : " + CustomLibrary.FindAvgOfList(studentList)
+ " - Total : " + CustomLibrary.FindTotalOfList(studentList)
+ "\n";
}
return(output);
}