Question

我正在向TextBlock中的Border元素添加一些StackPanel个元素。我正在通过添加TextBlock添加并格式化Inlines的文字。

点击后，我想获取TextBlock的格式化文本。这是我的代码。

public void addText()
{
    TextBlock myText = new TextBlock();
    myText.Inlines.Add(new Bold(new Run("Hello ")));
    myText.Inlines.Add("World!");

    Border myBorder = new Border();
    myBorder.Child = myText;
    myBorder.MouseDown += new MouseButtonEventHandler(Border_Clicked);

    myStackPanel.Children.Add(myBorder);
}

private void Border_Clicked(object sender, MouseButtonEventArgs e)
{
    //Border senderBox = (Border)sender;
    //TextBlock senderText = (TextBlock)senderBox.Child;
    //Bold inline = (Bold) senderText.Inlines.ElementAt(0);
    // How to Output "Hello "?
}

Border_Clicked应输出“Hello”。正如你所看到的，我能够得到粗体文本，但我怎么能输出呢？

Answer 1

@Helen，有一种方法可以使用TextRange从TextPointer获取Text。试试这段代码

void myBorder_MouseDown(object sender, MouseButtonEventArgs e)
{
    var senderBox = (Border)sender;
    var senderText = (TextBlock)senderBox.Child;
    var inline = (Bold)senderText.Inlines.ElementAt(0);

    var textRange = new TextRange(inline.ContentStart, inline.ContentEnd);
    Console.WriteLine(textRange.Text);
}

Answer 2

问题是从Bold元素中获取文本吗？

private void Border_Clicked(object sender, MouseButtonEventArgs e)
{
    var border = (Border)sender;
    var textBlock = (TextBlock)border.Child;
    var bold = (Bold)textBlock.Inlines.ElementAt(0);

    // How to Output "Hello "?

    // try
    var output = ((Run)bold).Text;
    // or rather (because Bold is a wrapper)
    var output = ((Run)bold.Inlines[0]).Text;
}

如果您可以像这样添加内联

myText.Inlines.Add(new Run("Bold text") { FontWeight = FontWeight.Bold });

然后是

var run = (Run)textBlock.Inlines[0];
var output = run.Text;

Answer 3

无法在MessageBox中控制字体特征。我认为你应该考虑创建一个＆＃34;自定义MessageBox＆＃34;。像这样：

<Window x:Class="WpfApplication1.CustomMessageBox"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        SizeToContent="WidthAndHeight" MaxWidth="400">

    <Grid x:Name="GridContent" Margin="10">

    </Grid>
</Window>

所以在它的构造函数中你可以发送你的Bold：

private Bold _text;
public CustomMessageBox(Bold formattedText)
{
   _text = formattedText;
   GridContent.Child = _text;
}

使用：

private void Border_Clicked(object sender, MouseButtonEventArgs e)
{
    Border senderBox = (Border)sender;
    TextBlock senderText = (TextBlock)senderBox.Child;
    Bold inline = (Bold) senderText.Inlines.ElementAt(0);
    var customMsgBox = new CustomMessageBox(inline);
    customMsgBox.ShowModal();
}

现在，如果您不确定它将永远是一个Bold对象，我建议您将格式化的文本保存为XML并在之后加载。看看这个：showing formatted text

WPF C＃ - 从TextBlock

3 个答案: