static IEnumerable <Student> GetGradedStudents(List <Student> students, GradeFilter filter)
{
foreach (var student in students)
{
if (filter(student))
{
yield return(student);
}
}
}
private void InsertMagicFilters()
{
var magicTypeFilters = new TypeFilter("TFmagic")
{
Checked = true,
Magic = true
};
TypeFilters.Insert(0, magicTypeFilters);
var magicEngineerFilters = new EngineerFilter("EFmagic")
{
Checked = true,
Magic = true
};
EngineerFilters.Insert(0, magicEngineerFilters);
var magicGradeFilter = new GradeFilter("GFmagic")
{
Checked = true,
Magic = true
};
GradeFilters.Insert(0, magicGradeFilter);
magicGradeFilter.PropertyChanged += (o, e) =>
{
foreach (var filter in GradeFilters)
{
filter.Checked = magicGradeFilter.Checked;
}
};
magicEngineerFilters.PropertyChanged += (o, e) =>
{
foreach (var filter in EngineerFilters)
{
filter.Checked = magicEngineerFilters.Checked;
}
};
magicTypeFilters.PropertyChanged += (o, e) =>
{
foreach (var filter in TypeFilters)
{
filter.Checked = magicTypeFilters.Checked;
}
};
}
