Updating object from ListView WPF

Question

i have a class Product that is displayed with a listview, in this listview i have a textbox that represent the ProductOwner. What i can't achieve is to update the Product Object from the listview. many people will say why not using DataGrid? because i want to try with a listview.

My XAML code:

<Window
x:Class="WpfApplication4.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow">

<Grid>


    <ListView Name="ListView">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Name" Width="100"  DisplayMemberBinding="{Binding Name}"/>
                <GridViewColumn Header="Reference" Width="100" DisplayMemberBinding="{Binding Reference}" />
                <GridViewColumn Header="Owner" Width="100">
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBox Width="90" Name="TextBox"></TextBox>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                </GridViewColumn>
            </GridView>
        </ListView.View>
    </ListView>
    <Button Name="Button" Content="Submit" Width="120" Height="25" Background="Azure" Click="Button_OnClick"></Button>
</Grid>

the button is here to update the ProductOwner from the current Product.

The code Behind:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        Width = SystemParameters.PrimaryScreenWidth - 100;
        Height = SystemParameters.PrimaryScreenHeight - 100;
        Product product = new Product
        {
          Name  = "name1",
          Reference = "reference1",
          Owner = "owner1"
        };
        Product product2 = new Product
        {
            Name = "name2",
            Reference = "reference2",
            Owner = ""
        };


        List<Product> list = new List<Product>();
        list.Add(product);
        list.Add(product2);
        InitializeComponent();
        ListView.ItemsSource = list;
    }


    private void Button_OnClick(object sender, RoutedEventArgs e)
    {
        //update product1 and product2

    }
}

In the Button OnClick event, the value in the textbox will update the value of the object. I know this question is already on stackoverflow, but it doesn't cover my needs.

Flat Eric · Accepted Answer · 2014-08-11 12:08:57Z

1

You need to bind the Text property of the TextBox to the matching property of your class (Product.Owner):

<TextBox Width="90" Name="TextBox" Text="{Binding Owner, Mode=TwoWay}" />

Edit

The property is updated when the TextBox looses the focus. This behavior can be changed by setting the UpdateSourceTrigger in the binding to PropertyChanged or Explicit.

For details, see: http://msdn.microsoft.com/en-us/library/ms754356%28v=vs.110%29.aspx

edited Aug 11, 2014 at 12:08

answered Aug 11, 2014 at 11:53

Flat Eric

8,1319 gold badges40 silver badges46 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Redaa Over a year ago

yes but what do i need to do in when the event is fired ?

André Silva Over a year ago

You won't be able to bind it anywhere because there is no DataContext attached to it. Follow our advice from the WPF chatroom and learn about MVVM, that will make sense once you learn it.

Flat Eric Over a year ago

@redaa: You don't need the event. The binding updates the property of your class when the TextBox looses the focus

Collectives™ on Stack Overflow

Updating object from ListView WPF

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related