Gérer combobox différente d'un grid

Bonjour

et si tu postais plutôt le code du xaml et la partie de code behind qui gère la combobox dans le fil?

Voir ici comment poster un code lisible.

Ca ne coute rien de compiler un projet.

MainWindow.xaml

<Window x:Class="WpfApplicationGrid.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApplicationGrid"  
        Title="MainWindow" Height="350" Width="525">
    <Window.DataContext>
        <local:viewmodel/>
    </Window.DataContext>
    <Window.Resources>
        <!-- CollectionViewSourceで参照出来るようにしておいて -->
        <CollectionViewSource   x:Key="ListSource"   Source="{Binding Path=Employees.lalist}" />
        <CollectionViewSource   x:Key="ResultatSource"   Source="{Binding resultat}" />

        <!--<DataTemplate x:Key="EmpTemplate" DataType="{x:Type local:Employee}">
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding resultat}"></TextBlock>                
            </StackPanel>
        </DataTemplate>-->
    </Window.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"></RowDefinition>
            <RowDefinition Height="32"></RowDefinition>
        </Grid.RowDefinitions>
        <Grid Grid.Row="0">
            <DataGrid AutoGenerateColumns="False" Name="myGrid" Margin="10" ItemsSource="{Binding Employees}" SelectionChanged="myGrid_SelectionChanged">
                <DataGrid.Columns>
                    <DataGridTextColumn Header="Name"  Binding="{Binding Path=Name}" />
                    <DataGridComboBoxColumn x:Name="truccombo" Header = "Party" SelectedItemBinding = "{Binding Path=resultat}"                   
                                            DisplayMemberPath="Name" 
                                            />
                    <DataGridTextColumn Header="RName"  Binding="{Binding Assign,Mode=OneWay}"  />


                </DataGrid.Columns>
            </DataGrid>
        </Grid>
        <Grid Grid.Row="1">
            <Button Content="Button" HorizontalAlignment="Left" Height="12" Margin="138,10,0,0" VerticalAlignment="Top" Width="91" Click="Button_Click"/>

        </Grid>
    </Grid>
</Window>

mainwindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplicationGrid
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void myGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems.Count > 0)
            {
                object o = e.AddedItems[0];
                Employee ee = o as Employee;
                if (ee != null)
                {
                    truccombo.ItemsSource = ee.lalist;
                }
            }
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            int i = 4;
            e = e;
        }
    }
}

viewmodel.cs

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WpfApplicationGrid
{
    public class Lttt
    {
        private string _name;
        public string Name
        {
            get
            {
                return _name;
            }
            set
            {
                _name = value;
            }

        }
        public Lttt(string s)
        {
            _name = s;
        }
    }
    public class Employee : INotifyPropertyChanged
    {

        public event PropertyChangedEventHandler PropertyChanged;
        ObservableCollection<Lttt> _lista;
       /* public static ObservableCollection<string> _Genders;
        public ObservableCollection<string> Genders
        {
            get
            {
                return _Genders;
            }
            set
            {
                _Genders = value;
            }
        }*/
        private Lttt _resultat;
        public Lttt resultat
        {
            get
            {
                return _resultat;
            }
            set
            {
                _resultat = value;
                if (PropertyChanged != null)
                {
                    PropertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs("Assign"));
                }
            }
        }
        public string Name { get; set; }
        public string Assign {
            get
            {
                string sd = "";
                if (_resultat!=null)
                    sd = _resultat.Name;
                return sd;
            }
       }
        public ObservableCollection<Lttt> lalist
        {
            get
            {
                return _lista;
            }

        }

        public Employee(string _sn, ObservableCollection<Lttt> maliste)
        {
            Name = _sn;
            //Gender = _sg;
            _resultat = null;
            _lista = maliste;


        }
    }
    public class viewmodel
    {
        //private Lttt _resultat;
        public static ObservableCollection<Employee> Employees { get; set; }


        public viewmodel()
        {


            ObservableCollection<Lttt> _lista,_listb;

            _lista = new ObservableCollection<Lttt>();
            _lista.Add(new Lttt("1"));
            _lista.Add(new Lttt("2"));
            _lista.Add(new Lttt("3"));
            _listb = new ObservableCollection<Lttt>();
            _listb.Add(new Lttt("4"));
            _listb.Add(new Lttt("5"));
            _listb.Add(new Lttt("6"));
            Employees = new ObservableCollection<Employee>()
            {
                new Employee("ABCgroup1",_lista),
                new Employee("CDEFgroup1",_lista),
                new Employee("UVDgroup2",_listb),
                new Employee("XYZgroup2",_listb),
            };

            //myGrid.ItemsSource = Employees;
            //Gender.ItemsSource = Genders;
        }        
    }
}

EDIT : Ajout des balises de code (la coloration syntaxique). Explications disponibles ici : ICI Merci d'y penser dans tes prochains messages.

Donc en me servant des codes postés dans la fil, j'ai pu tester.



Là en choisissant 5 dans la combox box de la ligne VUVDgroup2, cela a effacer le 2 de la colonne Party de CDEgroup1. Et si je comprends bien tu voudrait qu'il reste affiché?

oui qu'ils restent afficher.

Bonjour

un de mes collègues (bien plus calé que moi en WPF, mais trop timide pour répondre sur le forum) m'a dit que ce comportement est les comportement normal.

Le mieux selon lui est d'utiliser une listview, et de mettre une combobox en changeant le datacontext.
Un peu comme fait là
https://stackoverflow.com/questions/19565718/combobox-inside-listview-binding

merci