我怎么能只返回在WPF的RichTextBox体粗体字?

Question

private void SubmitButton_Click(object sender, RoutedEventArgs e)
{

myWeb.Source = new Uri ("https://www.google.com/search?tbm=isch&q=" + titleWord.Text + " " + boldWord.Text);
}

我有一个按钮搜索谷歌图像。有一个文本框输入标题(命名为titleWord)和一个RichTextBox输入(与运行命名为boldWord)。我只希望在RichTextBox中的粗体字被搜索，而不是整个文本。

<RichTextBox Grid.ColumnSpan="2" Grid.Column="1" HorizontalAlignment="Left" Height="150" Margin="10,4,0,0" Grid.Row="2" VerticalAlignment="Top" Width="220">
<FlowDocument>
<Paragraph>
<Run Name="boldWord" />
</Paragraph>
</FlowDocument>
</RichTextBox>

Answer 1

你的答案是找到粗体文本，我放了另一种方法。您应该在段落内滚动一组InlineCollection，找到具有您想要的功能的文本。

xaml code for test

<RichTextBox x:Name="rchTextbox" Grid.ColumnSpan="2" Grid.Column="1" HorizontalAlignment="Left" Height="150" Margin="10,4,0,0" Grid.Row="2" VerticalAlignment="Top" Width="220">
<FlowDocument>
<Paragraph>
<Run Text="Normal Text 1" />
<Run Text="Bold Test 1" FontWeight="Bold"></Run>
<Run Text=" Normal Text 2" FontWeight="Normal"></Run>
<Run Text="Bold Text 2" FontWeight="Bold"></Run>
</Paragraph>
</FlowDocument>
</RichTextBox>

和。cs代码

List<string> boldTexts = new List<string>();
foreach (Paragraph p in rchTextbox.Document.Blocks)
{
foreach (var inline in p.Inlines)
{
if (inline.FontWeight == FontWeights.Bold)
{
var textRange = new TextRange(inline.ContentStart, inline.ContentEnd);
boldTexts.Add(textRange.Text);
MessageBox.Show(textRange.Text);
}
}
}