WPF的RichTextBox如何赋值给它

[xiaogua]

WPF的RichTextBox如何赋值给它？
我都没找到Text属性

[波导终结者]

http://www.cnblogs.com/RMay/archive/2008/07/22/1248905.html

[xiaogug01]

RichTextBox是高级版的TextBox,能包含格式化的文字，内容存在Document（FlowDocument类型）属性（不是Text属性）里

[ashoulo]

顶 下

[RexZheng]

.Document

[EagleZhangJB]

/// <summary>
/// 打开文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Image_MouseLeftButtonUp_1(object sender, MouseButtonEventArgs e)
{
OpenFileDialog openfile = new OpenFileDialog();
openfile.Filter = "Rtf文件(*.Rtf)|*.Rtf|txt文件(*.txt)|*.txt|所有文件(*.*)|*.*";
string fileName = "";
if (openfile.ShowDialog().Value)
{
fileName = openfile.FileName;
string fileExtension = System.IO.Path.GetExtension(fileName).ToUpper();
if (fileExtension == ".TXT")
{
using (FileStream fileStream = File.OpenRead(fileName))
{
TextRange textRange = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
if (textRange.CanLoad(DataFormats.Text))
{
textRange.Load(fileStream, DataFormats.Text);
}
}
}
}
}