Question

用C#设计了一个按键，打开.rtf和.txt文件，但是为什么只能打开.txt文件，打开.rtf文件会报错

代码如下：
private void button1_Click(object sender, EventArgs e)
{
openFileDialog1.FileName = "";
openFileDialog1.Filter = "RTF FILE(*.rtf)|*.RTF|TXT FILE(*.txt)|*.txt";
openFileDialog1.ShowDialog();
if (openFileDialog1.FileName != "")
{
switch (openFileDialog1.FilterIndex)
{
case 1:
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.RichText);
break;
case 2:
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText);
break;
}
}

Answer 1

case 1:
                        richTextBox1.LoadFile(openFileDialog1.FileName);
                        break;

rtf文件时候去掉参数试试

追问

还是不行啊~~~

追答

在我本机试了可以的，打开rtf和txt都可以，你看看要打开的文件路径对不对