我从一个空白的RichTextBox开始
<RichTextBox x:Name="textBox" HorizontalAlignment="Left" Height="234" Margin="10,75,0,0" VerticalAlignment="Top" Width="214" PreviewMouseLeftButtonUp="textBox_PreviewMouseLeftButtonUp">
</RichTextBox>
然后我加载一个文件,读取所有文本,然后将其添加到RichTextBox中,就像这样
using (StreamReader sr = new StreamReader(@"D:\Text.txt"))
{
string fullText = sr.ReadToEnd();
textBox.Document.Blocks.Add(new Paragraph(new Run(fullText)));
}
当我检查我插入的fullText时,看起来像这样......立即以字符E
开头但是在渲染到控件之后,我选择了文本开头的一部分,但是在第一个字符之前似乎有一个回车换行符。
所以我的问题是它总是插入这些字符吗?
有没有办法删除此行为,因此它不会在文档的第一个字符之前插入任何内容?
答案 0 :(得分:2)
您的RichTextBox中已有一个Block。
您可以使用<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<style>
.block{
height: 200px;
background: lavender;
padding: 20px;
text-align: center;
font-size: 20px;
color: #000;
}
.push_down {
margin-bottom: 30px;
}
.hidden {
display: none;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="col-md-offset-3 col-md-6 col-sm-8">
<div class="parent">
<div class="panel-primary">
<div class="panel-heading push_down">
<div class="block">
BLOCK A
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
BLOCK B
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
Here
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
Where
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
Dark
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
BLOCK B
</div>
</div>
</div>
</div>
<div class="parent">
<div class="panel-primary">
<div class="panel-heading push_down">
<div class="block">
BLOCK AA
</div>
</div>
<div class="panel-heading push_down">
<div class="block">
BLOCK BB
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
将其删除。
你的第一个新段落现在没有空间。
如果段落在另一个元素之后,段落会在它们之上增加空间。