Question

does anyone know if there is a simple way to bind a textblock to a List. What I’ve done so far is create a listview and bind it to the List and then I have a template within the listview that uses a single textblock.

what I’d really like to do is just bind the List to a textblock and have it display all the lines.

In Winforms there was a ‘Lines’ property that I could just throw the List into, but I’m not seeing it on the WPF textblock, or TextBox.

Any ideas?

did I miss something simple?

Here’s the code

<UserControl x:Class='QSTClient.Infrastructure.Library.Views.WorkItemLogView' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'          Width='500' Height='400'> <StackPanel>     <ListView ItemsSource='{Binding Path=Logs}' >         <ListView.View>             <GridView>                 <GridViewColumn Header='Log Message'>                     <GridViewColumn.CellTemplate>                         <DataTemplate>                             <TextBlock Text='{Binding}'/>                         </DataTemplate>                     </GridViewColumn.CellTemplate>                 </GridViewColumn>             </GridView>         </ListView.View>     </ListView> </StackPanel> 

and the WorkItem Class

public class WorkItem {     public string Name { get; set; }     public string Description { get; set; }     public string CurrentLog { get; private set; }     public string CurrentStatus { get; private set; }     public WorkItemStatus Status { get; set; }     public ThreadSafeObservableCollection<string> Logs{get;private set;} 

I’m using Prism to create the control and put it into a WindowRegion

        WorkItemLogView newView = container.Resolve<WorkItemLogView>();         newView.DataContext = workItem;         regionManager.Regions['ShellWindowRegion'].Add(newView); 

thanks

Answer 1

Convert your List to a single string with ‘\r\n’ as the delimiter in between. and bind that to the TextBlock. Make sure that the TextBlock is not restricted with its height , so that it can grow based on the number of lines. I would implement this as a Value Converter to XAML Binding which converts a List of strings to a single string with new line added in between

<TextBlock Text='{Binding Path=Logs,Converter={StaticResource ListToStringConverter}}'/> 

The ListToStringConverter would look like this:

[ValueConversion(typeof(List<string>), typeof(string))] public class ListToStringConverter : IValueConverter {      public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)     {         if (targetType != typeof(string))             throw new InvalidOperationException('The target must be a String');          return String.Join(', ', ((List<string>)value).ToArray());     }      public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)     {         throw new NotImplementedException();     } }