Forms, I would like to know how to display all table columns in a SQLite database, using the Binding and Listview. I'm using Visual Studio 2017, latest version with Android. All Include, Delete, and Change and List functions are working. I just can not display all the columns in the table. My registration page, CadastroPage.xaml, has the following code:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="AppResumoAulas.Pages.CadastroPage"
Title="Cadastro de Usuários">
<ContentPage.ToolbarItems>
<ToolbarItem Name="Novo" Icon="new48.png" Activated="Novo_Activated" />
</ContentPage.ToolbarItems>
<ContentPage.Content>
<StackLayout>
<SearchBar Placeholder="Procurar..." BackgroundColor="Yellow"
TextChanged="SearchBar_TextChanged" />
<ListView x:Name="lvwUsuarios">
<ListView.ItemTemplate>
<DataTemplate>
<TextCell Text="{Binding Usu_Id}" Detail="{Binding Usu_Nome, Usu_Email}"
TextColor="Black"
DetailColor="Silver">
<TextCell.ContextActions>
<MenuItem Text="Alterar" Clicked="Alterar_Clicked"
CommandParameter="{Binding .}" />
<MenuItem Text="Deletar" Clicked="Deletar_Clicked"
IsDestructive="True"
CommandParameter="{Binding .}" />
</TextCell.ContextActions>
</TextCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
</ContentPage.Content>
</ContentPage>
The code of the page CadastroPage.xaml.cs, follows below:
using AppResumoAulas.Model;
using System;
using System.Collections.ObjectModel;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
namespace AppResumoAulas.Pages
{
[XamlCompilation(XamlCompilationOptions.Compile)]
public partial class CadastroPage : ContentPage
{
private ObservableCollection<Usuarios> _usuarios;
public CadastroPage ()
{
InitializeComponent ();
var usuarios = App.DataBase.GetUsuarios();
_usuarios = new ObservableCollection<Usuarios>(usuarios);
lvwUsuarios.ItemsSource = _usuarios;
}
private void Novo_Activated(object sender, EventArgs e)
{
Navigation.PushAsync(new IncluirPage(_usuarios));
}
private void Alterar_Clicked(object sender, EventArgs e)
{
var menuItem = sender as MenuItem;
var usuario = menuItem.CommandParameter as Usuarios;
Navigation.PushAsync(new AlterarPage(usuario));
}
private async void Deletar_Clicked(object sender, EventArgs e)
{
var usuario = (sender as MenuItem).CommandParameter as Usuarios;
var resposta = await DisplayAlert("Confirma Exclusão deste registro ?", usuario.Usu_Nome, "Sim", "Não");
if (resposta == true)
{
App.DataBase.DeletarUsuario(usuario);
_usuarios.Remove(usuario);
}
}
private void SearchBar_TextChanged(object sender, TextChangedEventArgs e)
{
lvwUsuarios.ItemsSource = App.DataBase.GetUsuarios(e.NewTextValue);
}
}
}
The code for creating the Table, follows below:
using SQLite;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
namespace AppResumoAulas.Model
{
[Table("Usuarios")]
public class Usuarios : NotifyBase
{
[PrimaryKey, AutoIncrement]
public int Usu_Id { get; set; }
private string _Usu_Nome;
[MaxLength(300)]
public string Usu_Nome
{
get { return _Usu_Nome; }
set
{
_Usu_Nome = value;
OnPropertyChanged();
}
}
private string _Usu_Email;
[MaxLength(150)]
public string Usu_Email
{
get { return _Usu_Email; }
set
{
_Usu_Email = value;
OnPropertyChanged();
}
}
private bool _Usu_Ativo;
public bool Usu_Ativo
{
get { return _Usu_Ativo; }
set
{
_Usu_Ativo = value;
OnPropertyChanged();
}
}
}
}
It seems like a simple problem, for me, that I'm starting, and very complex. I look forward to who can help. Very grateful to all.