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SistemaEscolar: PaginaAlumno.xaml.cs
using System;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using SistemaEscolar.Modelos;
using SistemaEscolar.Servicios;
namespace SistemaEscolar.Paginas
{
[XamlCompilation(XamlCompilationOptions.Compile)]
public partial class PaginaAlumno : ContentPage
{
ServicioBaseDatos<Alumno> bd;
public PaginaAlumno (Alumno alumno)
{
InitializeComponent ();
this.BindingContext = alumno;
bd = new ServicioBaseDatos<Alumno>();
if (alumno.Id == 0)
this.ToolbarItems.RemoveAt(1);
}
void Loading(bool mostrar)
{
indicator.IsEnabled = mostrar;
indicator.IsRunning = mostrar;
}
async void btnRegistrar_Clicked(object sender, EventArgs e)
{
Loading(true);
var alumno = (Alumno)this.BindingContext;
if (alumno.Id > 0)
await bd.Actualizar(alumno);
else
await bd.Agregar(alumno);
Loading(false);
await DisplayAlert("Correcto", "Registro realizado correctamente", "OK");
await Navigation.PopAsync();
}
async void btnEliminar_Clicked(object sender, EventArgs e)
{
if (await DisplayAlert("Advertencia", "¿Deseas eliminar este registro?", "Si", "No"))
{
Loading(true);
await bd.Eliminar(((Alumno)this.BindingContext).Id);
Loading(false);
await DisplayAlert("Correcto", "Registro eliminado correctamente", "OK");
await Navigation.PopAsync();
}
}
}
}
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