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我有以下錯誤：ASP.net進程無法訪問文件，因爲它正被另一個進程使用
The process cannot access the file because it is being used by another process.
試圖保存文件，然後閱讀它，請你能幫助我解決代碼 ？
protected void Button1_Click(object sender, EventArgs e)
{
string path = "\\\\nasouts01\\CodiceDiRete\\temp\\";
if (FileUpload1.HasFile)
{
string fileExt =
System.IO.Path.GetExtension(FileUpload1.FileName);
if (fileExt == ".csv")
{
try
{
FileUpload1.SaveAs(path + FileUpload1.FileName);
}
catch (Exception ex)
{
Label1.Text = "ERROR: " + ex.Message.ToString();
}
finally
{
FileUpload1.PostedFile.InputStream.Flush();
FileUpload1.PostedFile.InputStream.Close();
FileUpload1.FileContent.Dispose();
//Release File from Memory after uploading
}
}
else
{
Label1.Text = "Selezionare soltanto file .csv";
gwreportpub.Visible = false;
ButtonConferma.Visible = false;
ButtonAnnulla.Visible = false;
ButtonPulisci.Visible = false;
return;
}
}
else
{
Label1.Text = "Inserire un file ";
gwreportpub.Visible = false;
ButtonConferma.Visible = false;
ButtonAnnulla.Visible = false;
ButtonPulisci.Visible = false;
return;
}
/*
Validazione nel file , dopo visualizzazione dei dati nella tabella
*/
int count = 0;
string line;
// Read the file and display it line by line.
using (System.IO.StreamReader file =
new System.IO.StreamReader(path+FileUpload1.FileName))
{
while((line = file.ReadLine()) != null)
{
count = line.Split(',').Length;
if(count != 12){
Label1.Text = "Il file non contiene il numero esatto di campi che servono al caricamento";
gwreportpub.Visible = false;
ButtonConferma.Visible = false;
ButtonAnnulla.Visible = false;
ButtonPulisci.Visible = false;
return;
}
}
file.Close();
}
/*
Prendo il valore della sequence
*/
OracleCommand sequenceCmd = new OracleCommand("select ls_seq_batchrequest.nextval from dual",connection);
OracleDataReader reader = sequenceCmd.ExecuteReader();
int sequenceVal=0;
while (reader.Read())
{
//dropdownlist1.Items.Insert(0, new ListItem(reader.GetString(0), reader.GetString(0)));
sequenceVal = reader.GetInt32(0);
}
reader.Close();
Session["sequenceVal"] = sequenceVal;
/*
Faccio l'inserimento a db dei dati e visualizzo la tabella
*/
OracleTransaction myTrans = null;
OracleCommand cmd = new OracleCommand("INSERT INTO ZTMP_SAM_TB_ELAB_PDR(facilityid,taxid,plantcode,ca_pdr, fullmeterkey_m1, corrmeterid_m1, " +
"stopreading_m1, corrstopreading_m1,fullmeterkey_m2, corrmeterid_m2, " +
"stopreading_m2, corrstopreading_m2, stopreadtime_m1,stopreadtime_m2,uidbatchrequest) " +
" VALUES (:1,:2,:3,:4,:5,:6,:7,:8,:9,:10,:11,:12,:13,:14,:15)", connection);
//myTrans = connection.BeginTransaction();
//cmd.Transaction = myTrans;
/*
(:facilityid,:taxid,
:plantcode,:capdr,:fullmetkeym2,
:corrmetidm2,:stopreadingm2,
:corrstopreadm2,:fullmetkeym1,
:corrmetidm1,:stopreadingm1,:corrstopreadm1,
:stopreadtimem2,:stopreadtimem1)
*/
using (System.IO.StreamReader file2 =
new System.IO.StreamReader(path+FileUpload1.FileName))
{
//System.IO.StreamReader file2 = new System.IO.StreamReader(path+FileUpload1.FileName);
try
{
while((line = file2.ReadLine()) != null)
{
string[] split = line.Split(',');
cmd.Parameters.Add("1", OracleType.VarChar, 64).Value = split[0];
cmd.Parameters.Add("2", OracleType.VarChar, 64).Value = "";
cmd.Parameters.Add("3", OracleType.VarChar, 64).Value = "";
cmd.Parameters.Add("4", OracleType.Number).Value = Convert.ToInt32(split[1]);
cmd.Parameters.Add("5", OracleType.VarChar, 64).Value = split[6];
cmd.Parameters.Add("6", OracleType.VarChar, 64).Value = split[7];
cmd.Parameters.Add("7", OracleType.Number).Value = Convert.ToInt32(split[8]);
cmd.Parameters.Add("8", OracleType.Number).Value = Convert.ToInt32(split[9]);
cmd.Parameters.Add("9", OracleType.VarChar, 80).Value = split[2];
cmd.Parameters.Add("10", OracleType.VarChar, 80).Value = split[3];
cmd.Parameters.Add("11", OracleType.Number).Value = Convert.ToInt32(split[4]);
cmd.Parameters.Add("12", OracleType.Number).Value = Convert.ToInt32(split[5]);
DateTime date1,date2;
DateTime.TryParseExact(split[10], "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out date1);
DateTime.TryParseExact(split[11], "dd/MM/yyyy", null, System.Globalization.DateTimeStyles.None, out date2);
cmd.Parameters.Add("13", OracleType.DateTime).Value = date1;
cmd.Parameters.Add("14", OracleType.DateTime).Value = date2;
cmd.Parameters.Add("15", OracleType.Number).Value = sequenceVal;
cmd.ExecuteNonQuery();
/*Per ogni elemento esegui l'insert*/
}
//myTrans.Commit();
}
catch(Exception ex){
//myTrans.Rollback();
Label1.Text = ex.Message;
return;
//"Si e' verificato un errore nell'inserimento dei dati nella tabella ZTMP_SAM_TB_ELAB_PDR";
}
file2.Close();
}
}
是大的方法，我建議你破解過程分成若干更小的方法，它會更容易調試從那裏 – RoughPlace
做我做到了.. –
只是一個尖無關您當前的問題：在c＃中使用字符串文字來消除逃離路徑的需要。例如：'string path = @「\\ nasouts01 \ CodiceDiRete \ temp \」;'http://msdn.microsoft.com/en-us/library/aa691090(v=vs.71).aspx – BLSully