private void AddCourse(object obj)
{
if (CourseName == null || CourseName.Length == 0)
{
Output = "Please enter course name";
return;
}
if (CourseID == null || CourseID.Length == 0)
{
Output = "Please enter course ID";
return;
}
foreach (char c in CourseID.Trim())
{
if (c < '0' || c > '9')
{
Output = "courseID can only contain numbers, invalid character '" + c + "'";
return;
}
}
if (MaxPart == null || MaxPart.Length == 0)
{
Output = "Please enter max number of participants";
return;
}
try
{
Dal.AddCourse(CourseID, CourseName, int.Parse(MaxPart));
Output = "Course added";
}
catch (Exception e)
{
HandleException(e);
}
}