public GradeViewModel(int _id)
{
gradeName = DataProvider.Ins.DB.grades.Where(x => x.id == _id).ToArray()[0].name;
SaveCommand = new RelayCommand <MetroWindow>((p) => { return(true); },
async(p) =>
{
var mySettings = new MetroDialogSettings()
{
AffirmativeButtonText = "Ok",
ColorScheme = p.MetroDialogOptions.ColorScheme
};
grade EditingGrade = DataProvider.Ins.DB.grades.Where(x => x.id == _id).ToArray()[0];
EditingGrade.name = gradeName;
DataProvider.Ins.DB.SaveChanges();
await p.ShowMessageAsync("Hello!", "Saved successfully.", MessageDialogStyle.Affirmative, mySettings);
p.Close();
LoadData();
ClassViewModel.LoadGrades();
});
}
public GradeViewModel()
{
LoadData();
AddGradeCommand = new RelayCommand <UserControl>((p) => { return(true); },
async(p) =>
{
MetroWindow CurrentWindow = Application.Current.MainWindow as MetroWindow;
var mySettings = new MetroDialogSettings()
{
AffirmativeButtonText = "Ok",
ColorScheme = CurrentWindow.MetroDialogOptions.ColorScheme
};
var mySettings2 = new MetroDialogSettings()
{
AffirmativeButtonText = "Yes",
NegativeButtonText = "No",
ColorScheme = CurrentWindow.MetroDialogOptions.ColorScheme
};
if (gradeName == null || gradeName == "")
{
await CurrentWindow.ShowMessageAsync("Hello!", "Please fill in every blanks.", MessageDialogStyle.Affirmative, mySettings);
return;
}
MessageDialogResult mr = await CurrentWindow.ShowMessageAsync("Hello!", "Do you want to add grade " + gradeName + " ?", MessageDialogStyle.AffirmativeAndNegative, mySettings2);
if (mr == MessageDialogResult.Affirmative)
{
if (DataProvider.Ins.DB.grades.Where(x => x.name == gradeName).Count() > 0)
{
await CurrentWindow.ShowMessageAsync("Hello!", "This grade existed.", MessageDialogStyle.Affirmative, mySettings);
return;
}
else
{
grade AddingGrade = new grade();
AddingGrade.name = gradeName;
DataProvider.Ins.DB.grades.Add(AddingGrade);
DataProvider.Ins.DB.SaveChanges();
await CurrentWindow.ShowMessageAsync("Hello!", "Added successfully.", MessageDialogStyle.Affirmative, mySettings);
LoadData();
ClassViewModel.LoadGrades();
}
}
});
DeleteCommand = new RelayCommand <int>((p) => { return(true); },
async(p) =>
{
MetroWindow CurrentWindow = Application.Current.MainWindow as MetroWindow;
var mySettings = new MetroDialogSettings()
{
AffirmativeButtonText = "Ok",
ColorScheme = CurrentWindow.MetroDialogOptions.ColorScheme
};
var mySettings2 = new MetroDialogSettings()
{
AffirmativeButtonText = "Yes",
NegativeButtonText = "No",
ColorScheme = CurrentWindow.MetroDialogOptions.ColorScheme
};
grade DeletingGrade = DataProvider.Ins.DB.grades.Where(x => x.id == p).ToArray()[0];
MessageDialogResult mr = await CurrentWindow.ShowMessageAsync("Hello!", "Do you want to delete grade " + DeletingGrade.name + "?", MessageDialogStyle.AffirmativeAndNegative, mySettings2);
if (mr == MessageDialogResult.Affirmative)
{
if (DeletingGrade.classes.Count() > 0)
{
await CurrentWindow.ShowMessageAsync("Hello!", "This grade has more than one class. Please delete its classes first.", MessageDialogStyle.Affirmative, mySettings);
return;
}
DataProvider.Ins.DB.grades.Remove(DeletingGrade);
DataProvider.Ins.DB.SaveChanges();
await CurrentWindow.ShowMessageAsync("Hello!", "Deleted successfully.", MessageDialogStyle.Affirmative, mySettings);
LoadData();
ClassViewModel.LoadGrades();
}
});
EditCommand = new RelayCommand <Button>((p) => { return(true); },
(p) =>
{
int id = Convert.ToInt32(p.Tag);
EditGrade editGrade = new EditGrade(id);
editGrade.ShowDialog();
});
SearchCommand = new RelayCommand <string>((p) => { return(true); },
(p) =>
{
List <grade> SearchedGrade = DataProvider.Ins.DB.grades.Where(x => x.name.Contains(p)).ToList();
LoadData(SearchedGrade);
});
}
