WPF文本块与列表＆LT结合;串＆GT; [英] WPF textblock binding with List<string>

问题描述

没有人知道是否有给TextBlock绑定到一个列表的简单方法。
什么我迄今所做的就是创建一个ListView并将其绑定到列表，然后我有一个使用一个单一的文本块列表视图中的模板。

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.

我真的很想做的只是绑定列表给TextBlock并将它显示的所有行。

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

在的WinForms有，我可以随便扔名单成线属性，但我没有看到它在WPF文本块，或文本框。

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.

任何想法？

我错过了一些东西简单？

did I miss something simple?

这里的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>

和工作项级

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;}

我用棱镜来创建控件，并把它变成一个WindowRegion

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);

感谢

推荐答案

通过将您列表以一个字符串为\\ r \\ n，如之间的分隔符。并绑定该到TextBlock。确保将TextBlock不与它的高度限制，因此，它可以长的基础上的行数。
我会实现这个作为一个值转换器到XAML绑定该字符串列表转换为一个字符串与新行

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}}"/>

该ListToStringConverter是这样的：

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();
    }
}

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