我尝试保存现有文件时收到此错误:
进程无法访问该文件,因为它正由另一个进程使用
它在文件不存在时有效,但当我再次尝试写入时,错误就会出现。我当时没有访问或使用该文件。
这是代码:
string directory = filepath + "Updates\\" + dir;
if(!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
remarks = remarks.Trim();
remarks = remarks.Replace("\r\n","<br>");
remarks = remarks.Replace(",","|");
string file = directory + "\\" + getIndex(barcode) + ".asdt";
StreamWriter writer = new StreamWriter(file,true);
writer.WriteLine(username + "," + barcode + "," + DateTime.Now.ToString("yyyy-MM-dd HH.mm")+ "," + remarks);
writer.Close();
当我检查它时,错误发生在该行:
StreamWriter writer = new StreamWriter(file,true);
这可能是什么原因?
您的程序可能没有正确处理文件流,保持文件打开。
使用using
声明确保正确处置:
using(StreamWriter writer = new StreamWriter(file,true))
{
writer.WriteLine(username + "," + barcode + "," + DateTime.Now.ToString("yyyy-MM-dd HH.mm")+ "," + remarks);
writer.Close();
}
或者,您可以在关闭后使writer对象无效。
尝试在writer.Flush();
之前使用writer.Close();