WPF列表框的项目不自动换行 [英] WPF listbox item not wordwrapping

问题描述

我的列表框有（​​其中包括）中有一个描述字段可能相当长。而不是有水平滚动条我想自动换行了。 它的工作原理，如果我设置了了maxWidth 但由于列表框更改大小我不想硬code值

什么是做到这一点的最好方法是什么？

编辑：该说明是在的TextBlock

简体XAML（去掉unnessesary的东西，仍然显示问题：

 ＆LT;列表框了borderThickness =0填充=5NAME =lstTasks＆GT;
            ＆LT; ListBox.ItemsSource＆GT;
                ＆LT;绑定源={的StaticResource dataTasks}/＆GT;
            ＆LT; /ListBox.ItemsSource>

            ＆LT; ListBox.ItemTemplate＆GT;
                ＆LT;的DataTemplate＆GT;
                    ＆LT;电网＆GT;
                        ＆LT; TextBlock的文本={绑定路径= RequestDescription}的TextTrimming =WordEllipsisTextWrapping =自动换行高度=60/＆GT;
                    ＆LT; /网格＆GT;
                ＆LT; / DataTemplate中＆GT;
            ＆LT; /ListBox.ItemTemplate>
        ＆LT; /列表框＆GT;
 

解决方案

试着强迫你的ListBoxItems的宽度为列表框的宽度：

 ＆LT;列表框
     NAME =lstTasks
     了borderThickness =0
     填充=5
     Horizo​​ntalContentAlignment =拉伸＆GT;
 

你也可以尝试禁用水平滚动：

 ＆LT;列表框
     ScrollViewer.Horizo​​ntalScrollBarVisibility =已禁用
     ...＆GT;
 

My ListBox has, amongst other things a description field in it which can be quite long. Instead of having a horizontal scroll bar I want to word wrap it. It works if I set the MaxWidth but since the ListBox changes size I don't want to hard code the value.

What's the best way to do this?

EDIT: The description is in a TextBlock.

Simplified XAML (Removed unnessesary stuff, still shows problem:

         <ListBox BorderThickness="0" Padding="5" Name="lstTasks">
            <ListBox.ItemsSource>
                <Binding Source="{StaticResource dataTasks}"/>
            </ListBox.ItemsSource>

            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid>
                        <TextBlock Text="{Binding Path=RequestDescription}" TextTrimming="WordEllipsis" TextWrapping="Wrap" Height="60" />
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

解决方案

Try forcing the width of your ListBoxItems to be the width of the ListBox:

<ListBox
     Name="lstTasks"
     BorderThickness="0"
     Padding="5"
     HorizontalContentAlignment="Stretch">

Also you might try disabling horizontal scrolling:

<ListBox
     ScrollViewer.HorizontalScrollBarVisibility="Disabled"
     ...>

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