该进程无法访问文件"...",因为它正在被另一个进程使用 [英] The process cannot access the file '...' because it is being used by another process
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问题描述
我有一个删除文件夹中文件的代码,但是在我的行代码中,我想删除两个文件以及不同的文件夹.但是我总是收到一个错误该进程无法访问....另一个进程".也许您可以更正我的代码并给我一个解决方案.谢谢
I have a code to delete file in my folder, but in my line code, I want to delete two file together with different folder. But I always get an error "the process cannot access.... another process". May be you can correct my code and give me a solution. Thanks
1)我有一个代码,可以在保存文件(.pdf)时生成水印:
1) I have a code to generate watermark when save file(.pdf):
public bool InsertWaterMark(string path)
{
bool valid = true;
string FileDestination = AppDomain.CurrentDomain.BaseDirectory + "Content/" + path;
string FileOriginal = AppDomain.CurrentDomain.BaseDirectory + "Content/" + path.Replace("FileTemporary", "FileOriginal");
System.IO.File.Copy(FileDestination, FileOriginal);
string watermarkText = "Controlled Copy";
#region process
PdfReader reader1 = new PdfReader(FileOriginal);//startFile
using (FileStream fs = new FileStream(FileDestination, FileMode.Create, FileAccess.Write, FileShare.None))//watermarkedFile
{
using (PdfStamper stamper = new PdfStamper(reader1, fs))
{
int pageCount1 = reader1.NumberOfPages;
PdfLayer layer = new PdfLayer("WatermarkLayer", stamper.Writer);
for (int i = 1; i <= pageCount1; i++)
{
iTextSharp.text.Rectangle rect = reader1.GetPageSize(i);
PdfContentByte cb = stamper.GetUnderContent(i);
cb.BeginLayer(layer);
cb.SetFontAndSize(BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED), 80);
PdfGState gState = new PdfGState();
gState.FillOpacity = 0.15f;
cb.SetGState(gState);
cb.SetColorFill(BaseColor.GRAY);
cb.BeginText();
cb.ShowTextAligned(PdfContentByte.ALIGN_CENTER, watermarkText, rect.Width / 2, rect.Height / 2, 45f);
cb.EndText();
PdfContentByte canvas = stamper.GetUnderContent(i);
BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA_OBLIQUE, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
canvas.SetColorFill(BaseColor.RED);
PdfGState gStateFooter = new PdfGState();
gStateFooter.FillOpacity = 1f;
canvas.SetGState(gStateFooter);
canvas.BeginText();
canvas.SetFontAndSize(bf, 12);
canvas.ShowTextAligned(PdfContentByte.ALIGN_CENTER, '"' + "When printed, this documents are considered uncontrolled" + '"', 300.7f, 10.7f, 0);
canvas.EndText();
cb.EndLayer();
}
}
}
#endregion
return valid;
}
2)当从一页中一起删除详细数据时,我会调用此代码.
2) And this code i call when delete detail data from one page together.
public ActionResult Delete(string parm)
{
TableEDIS data = db.TableEDISs.FirstOrDefault(e => e.detail_guid_edis == new Guid(parm));
string fisikFile = data.upload_document;
string fisikFileFormulir = data.upload_document_formulir;
if (!string.IsNullOrEmpty(fisikFile))
{
var relativePath = "~/Content/" + fisikFile;
var absolutePath = HttpContext.Server.MapPath(relativePath);
var absolutePathOriginal = HttpContext.Server.MapPath(relativePath.Replace("Temporary", "Original"));
if (Directory.Exists(Path.GetDirectoryName(absolutePath)))
{
System.IO.File.Delete(absolutePath);
}
if (Directory.Exists(Path.GetDirectoryName(absolutePathOriginal)))
{
System.IO.File.Delete(absolutePathOriginal);
}
}
}
希望您能理解我的意思.
I hope you understand what I mean.
谢谢.
推荐答案
我的间谍感告诉我您需要致电
My spidey senses tells me you need to call
reader1.Close();
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