Question

C# 的richTextBox.LoadFile无法打开纯文本文件，是怎么回事

private void button1_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.RichText);
}
}

private void button2_Click(object sender, EventArgs e)
{
if (richTextBox1.Text != null)
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.TextTextOleObjs);
}

可以保存不能打开，即便是保存输入的内容为.txt，因为不能打开，按f5然后打开说文件格式错误，再然后就挂了

Answer 1

richTextBox1.LoadFile(openFileDialog1.FileName);