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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
每當我嘗試保存在現有文件上時,都會收到此錯誤:
該進程無法訪問該文件,因為該文件正在被另一個進程使用
當文件不存在時,它可以工作,但是當我嘗試再次寫入文件時,將顯示錯誤。 那時我沒有訪問或使用文件。
這是代碼:
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();
當我檢查它時,該錯誤發生在行上:
StreamWriter writer = new StreamWriter(file,true);
這可能是什么原因?
您的程序可能無法正確處理文件流,從而使文件保持打開狀態。
使用using
語句確保正確處置:
using(StreamWriter writer = new StreamWriter(file,true))
{
writer.WriteLine(username + "," + barcode + "," + DateTime.Now.ToString("yyyy-MM-dd HH.mm")+ "," + remarks);
writer.Close();
}
或者,您可以在關閉后使writer對象無效。
嘗試使用writer.Flush();
在writer.Close();
之前writer.Close();
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