关闭saveFileDialog

Question

我有关闭saveFileDialog的问题.当我点击'取消'窗口再次出现.这是我的代码:

        private void SaveAsItem_Click(object sender, EventArgs e)
    {
        saveFileDialog1.FileName = "untitled";
        saveFileDialog1.Filter = "Text (*.txt)|*.txt";
        saveFileDialog1.ShowDialog();
        System.IO.StreamWriter SaveFile = new System.IO.StreamWriter(saveFileDialog1.FileName);
        if (saveFileDialog1.ShowDialog()==DialogResult.Cancel)
        {
            richTextBox1.Text = "CANCEL";
            issaved = false;
        }
        else
        {
            issaved = true;
            SaveFile.WriteLine(richTextBox1.Text);
        }
        SaveFile.Close();
    }

Answer 1

你打电话saveFileDialog1.ShowDialog()两次,一次是显示它,一次是为了得到结果.你只需要调用一次.删除那条单独说明saveFileDialog1.ShowDialog();你已经在if条件内完成的行.

编辑:您还需要移动FileStreamelse块中的所有操作,以便在删除该行后正常工作.这是我编辑的版本:

    private void SaveAsItem_Click(object sender, EventArgs e)
{
    saveFileDialog1.FileName = "untitled";
    saveFileDialog1.Filter = "Text (*.txt)|*.txt";
    if (saveFileDialog1.ShowDialog()==DialogResult.Cancel)
    {
        richTextBox1.Text = "CANCEL";
        issaved = false;
    }
    else
    {
        System.IO.StreamWriter SaveFile = new System.IO.StreamWriter(saveFileDialog1.FileName);
        issaved = true;
        SaveFile.WriteLine(richTextBox1.Text);
        SaveFile.Close();
    }
}

你也可以FileStream完全跳过一个只做一个File.WriteAlltext(saveFileDialog1.FileName, richTextBox1.Text).