ListBox not displaying string (but bools) using databinding in WPF

Question

i want to display a string and three bools in a listbox, therefor i made an ItemTemplate:

    <ListBox x:Name="lstVars" Margin="10,41" Grid.ColumnSpan="4" Grid.Column="1">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <WrapPanel Height="30">
                    <TextBlock  Text="{Binding description}" VerticalAlignment="Center" HorizontalAlignment="Left" Width="200"/>
                    <CheckBox Margin="3" Content="a" IsChecked="{Binding save}" Width="200"/>
                    <CheckBox Margin="3" Content="b" IsChecked="{Binding displayBoard}"  Width="200"/>
                    <CheckBox Margin="3" Content="c" IsChecked="{Binding displayGraph}" Width="200"/>
                </WrapPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

i made a testclass because with my original class it doesnt work (but the same "error" occurs with the testclass):

public class test
{
    public String description;
    public bool save { get; set; }
    public bool displayBoard { get; set; }
    public bool displayGraph { get; set; }

    public test(String description, bool save, bool displayBoard, bool displayGraph)
    {
        this.description = description;
        this.save = save;
        this.displayBoard = displayBoard;
        this.displayGraph = displayGraph;
    }
}

when i add some values to the listbox, the string is not displayed

lstVars.Items.Add(new test("teststring", true, false, true));

listbox

i first thought the text would just be in a not visible row but when i write Text="123test" instead of Text="{Binding description}" it displays 123test like it should.

Valera Scherbakov · Accepted Answer · 2014-01-22 10:21:45Z

2

You must declare binding objects as properties. Like your bool properties.

public String description {get; set;}

answered Jan 22, 2014 at 10:21

Valera Scherbakov

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2 Comments

Stefan Over a year ago

big thanks to you! i never worked with databinding and i almost knew that i made just a stupid little mistake :-D

Valera Scherbakov Over a year ago

It's really little mistake, but causes a lot of headache :)

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