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[英]C# The process can't access the file because it is being used by another process (File Dialog)
[英]The process can not access the file 'directory\file' because it is being used by another process in C# File Writer
每当我尝试保存在现有文件上时,都会收到此错误:
该进程无法访问该文件,因为该文件正在被另一个进程使用
当文件不存在时,它可以工作,但是当我尝试再次写入文件时,将显示错误。 那时我没有访问或使用文件。
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,该错误发生在行上:
StreamWriter writer = new StreamWriter(file,true);
这可能是什么原因?
您的程序可能无法正确处理文件流,从而使文件保持打开状态。
使用using
语句确保正确处置:
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。
尝试使用writer.Flush();
在writer.Close();
之前writer.Close();
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