尝试使用 StreamWriter 写入 .vcf 文件

Question

我想使用 streamWriter 写一个 vcard 文件 class 但我遇到了这个异常，这是什么意思以及如何解决？问候...
例外情况是：
FileStream 不会打开磁盘分区和磁带机等 Win32 设备。避免在路径中使用“\.\”。

private void button1_Click(object sender, EventArgs e)
        {
            string contactTemplate = "BEGIN:VCARD\nVERSION:3.0\nN:1;mtn;;Mr.;\nFN:mtn 1\nPHOTO;VALUE=URI;TYPE=GIF:http://www.example.com/dir_photos/my_photo.gif \nTEL;TYPE=WORK,VOICE:734641900\nEND:VCARD";
            StreamWriter txt = new StreamWriter("E:\Omar Project\con.vcf");
            txt.Write(contactTemplate);
            txt.Close(); 
        }

Answer 1

您可以在 MSDN

的 Naming Files, Paths and Namespaces 中阅读此警告

Do not use the following reserved names for the name of a file: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9. Also avoid these names followed immediately by an extension; for example, NUL.txt is not recommended. For more information, see Namespaces.

使用不同的文件名 CON 是保留的设备名称

StreamWriter txt = new StreamWriter("E:\Omar Project\CONDATA.vcf");

尝试使用 StreamWriter 写入 .vcf 文件

Attempt to write .vcf file using StreamWriter

c#

streamwriter

winforms