如何爲TextBlock設置正確的包裝樣式？

Question

我需要將完整的包裝文本轉換爲WPF文本塊。條件是我們不知道文本長度以及窗口大小。

的XAML我已經是：

<Border BorderThickness="1" CornerRadius="6" BorderBrush="#FF405DEF" Padding="5" Margin="5"> 
     <StackPanel Orientation="Horizontal"> 
      <Image HorizontalAlignment="Left" Source="{Binding Path=User.ProfileImageUrl}" Width="48" Height="48" 
        Name="UserAvatarImage" Stretch="Fill" VerticalAlignment="Top" /> 
      <StackPanel Margin="5,0,0,5" Orientation="Vertical" Grid.Column="1" HorizontalAlignment="Left" Name="stackPanel1" VerticalAlignment="Top" Width="413"> 
       <StackPanel Orientation="Horizontal" > 
        <StackPanel Orientation="Horizontal" > 
         <TextBlock Name="UserNameTextBlock" Margin="0,0,10,0" Text="{Binding Path=User.Name}" FontWeight="Bold">UserName</TextBlock> 
         <TextBlock Foreground="LightGray" >@</TextBlock> 
         <TextBlock Name="ScreenNameTextBlock" Text="{Binding Path=User.ScreenName}" Foreground="Gray" >ScreenName</TextBlock> 
        </StackPanel> 
       </StackPanel> 
       <StackPanel Orientation="Horizontal" Margin="0,5,0,0"> 
        <Grid > 
         <Grid.ColumnDefinitions> 
          <ColumnDefinition Width="2*" /> 
          <ColumnDefinition Width="2*" /> 
         </Grid.ColumnDefinitions> 
         <TextBlock Margin="0,0,0,0" Foreground="Blue" TextWrapping="Wrap">@ToUserName</TextBlock> 
         <StackPanel Grid.Column="1"> 
          <TextBlock Margin="5,0,0,0" Text="{Binding Path=Text}" MinHeight="20" MinWidth="200" 
             VerticalAlignment="Stretch" TextWrapping="WrapWithOverflow">START skf skdjf skdj hfskdjf ksdjhf ksjdhf ksjhf kjsf kjshf kjshkjfhsdf kjsfdkj hskdfj hskdjf hskdjf skjhfksjfks END</TextBlock> 
         </StackPanel>  
        </Grid> 
       </StackPanel> 
      </StackPanel> 
     </StackPanel> 
    </Border> 

所以，我需要這樣的：

它是通過硬編碼值Width="300"

Answer 1

我假設這是關係到your other question有關綁定完成一個控件的MaxWidth到另一個控件的ActualWidth

在你的情況下，我會用Grid替換水平線StackPanel，因爲網格會將其子女的大小限制爲可用空間，而StackPanel則不會。這樣TextBlock將不需要0​​屬性集來正確包裝。