我在asp.net网络表单中有一个应用程序。它可以简单地加载excel文件，转换它并下载转换后的文件。
我可以在任何其他浏览器（firefox，chrome等）上正常工作，但是在IE（任何版本）上它都不起作用。
我在visual studio中调试过，没有出现错误。
我在附加组件/防火墙/防病毒软件上禁用。
同样在浏览器上（Inspect element-F12），它不显示任何错误。
我不使用表单，页面是一个简单的文件上传和一个重新加载页面的按钮，在页面加载后面的代码上检查是否有文件而不是进程，否则加载页面。
因此，当我加载文件并单击“提交”时，IE会继续思考和思考，随时随地都可以使用。
其他浏览器会立即处理。
IE上是否存在任何不处理它的配置或错误，可能导致其中断/冻结的原因？
提前致谢
更新
背后的代码
public partial class pgs_Import : System.Web.UI.Page
{
GIFTS.BankAccount ourAccount = new GIFTS.BankAccount ("00", "0000", "00000", "00");
ReportingDBDataContext db = new ReportingDBDataContext();
protected void Page_Load(object sender, EventArgs e)
{
if (FUExpenses.HasFile)
{
DataTable dt = ImportData.ReadData(FUExpenses.PostedFile, ImportSource.Creditors);
ProcessExpenses(dt, RBLType.SelectedValue);
}
}
protected void ProcessExpenses(DataTable dt, string type)
{
string otherRef = "";
string filePrefix = "";
switch (type.ToUpper())
{
case "STAFFREIMBURSE":
otherRef = "ReimburseExp";
filePrefix = "StaffExpenses";
break;
case "ABCRENT":
otherRef = "Rent";
filePrefix = "Rent_";
break;
case "OTHER":
otherRef = TxtOtherRef.Text;
filePrefix = TxtOtherRef.Text.Replace(" ","_") + "_";
break;
}
DateTime dueDate;
if (!DateTime.TryParse(TxtCalendar.Text, out dueDate))
{
if (CalExtender.SelectedDate.HasValue)
dueDate = CalExtender.SelectedDate.Value;
else
dueDate = DateTime.Now;
}
if (dueDate.Date < DateTime.Now.Date)
throw new Exception("Can't travel back in time. Enter a date today or later.");
//60 days is a limit enforced by BNZ
if (dueDate.Date > DateTime.Now.AddDays(60).Date)
throw new Exception("That's forward planning! But can't be more than 60 days in future.");
GIFTS.GIFTSCreditBatch batch = new GIFTS.GIFTSCreditBatch(ourAccount, dueDate, ChkBulk.Checked);
List<string> problems = new List<string>();
for (int i = 0; i < dt.Rows.Count; i++)
{
DataRow row = dt.Rows[i];
try
{
GIFTS.GIFTSCreditRecordTransaction trans = new GIFTS.GIFTSCreditRecordTransaction();
GIFTS.BankAccount acct = new GIFTS.BankAccount(row["Bank Branch"].ToString() + row["Account"].ToString());
trans.OtherPartyAccountNumber = acct;
decimal amt = Convert.ToDecimal(row["InvoiceAmount"]);
amt = amt * 100;
trans.TransactionAmount = Convert.ToInt32(amt);
trans.TransactionCode = GIFTS.TransactionCodes.StandardCredit;
trans.OtherPartyName = row["VendorID"].ToString();
trans.OtherPartyReference = otherRef;
trans.OtherPartyCode = row["Department"].ToString();
trans.OtherPartyParticulars = row["Description"].ToString();
trans.OriginatorName = "Company Name";
trans.OriginatorCode = row["VendorID"].ToString();
trans.OriginatorReference = row["Department"].ToString();
trans.OriginatorParticulars = row["Description"].ToString();
batch.Transactions.Add(trans);
}
catch (Exception exc)
{
//Don't add as a problem if the line is blank
if (String.IsNullOrWhiteSpace(row["Bank Branch"].ToString()) && String.IsNullOrWhiteSpace(row["Account"].ToString()))
continue;
problems.Add(String.Format("Row {0}: {1}", i + 2, exc.Message));
}
}
if (problems.Count > 0)
{
StringBuilder sb = new StringBuilder();
foreach (String problem in problems)
{
sb.Append(problem);
sb.Append("<br />");
}
LblProblems.Text = sb.ToString();
}
else
{
string fileName = String.Format("{0}{1}-{2}-{3}.afi", filePrefix, (dueDate.Year % 100), dueDate.Month, dueDate.Day);
WriteOutput("text/plain", fileName, batch.ToCSV());
}
}
protected void WriteOutput(string contentType, string fileName, string content)
{
Response.Clear();
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.AddHeader("content-disposition", "attachment;filename=" + fileName);
Response.Charset = "";
Response.ContentType = contentType;
Response.Write(content);
Response.End();
}
}
namespace GIFTS
{
public enum TransactionCodes
{
StandardCredit = 50,
Payroll = 52,
Dividends = 61,
UNDEFINED = -1
}
public static class HelperMethods
{
public static bool IsValidFileCreationDate(DateTime date)
{
if (date < DateTime.Now)
return false;
else
return true;
}
public static bool IsValidFileDueDate(DateTime date)
{
if (date < DateTime.Now.AddDays(-1) || date > DateTime.Now.AddDays(60))
return false;
else
return true;
}
}
/// <summary>
/// For storing and formatting account numbers
/// </summary>
public interface IAccountNumber
{
string ToCondensedString();
string ToExpandedString();
}
public class BankAccount : IAccountNumber
{
public string Bank { get; private set; }
public string Branch { get; private set; }
public string Account { get; private set; }
public string Suffix { get; private set; }
public BankAccount(string accountNumber)
{
ParseAccountNumber(accountNumber);
}
public BankAccount(string bank, string branch, string account, string suffix)
{
Bank = bank;
Branch = branch;
Account = account;
Suffix = suffix;
}
public string ToCondensedString()
{
return String.Format("{0}{1}{2}{3}", Bank.PadLeft(2, '0'), Branch.PadLeft(4, '0'), Account.PadLeft(7, '0'), Suffix.PadLeft(3, '0'));
}
public string ToExpandedString()
{
return String.Format("{0}-{1}-{2}-{3}", Bank.PadLeft(2, '0'), Branch.PadLeft(4, '0'), Account.PadLeft(7, '0'), Suffix.PadLeft(3, '0'));
}
private void ParseAccountNumber(string accountNumber)
{
if (String.IsNullOrWhiteSpace(accountNumber))
throw new InvalidDataException("Blank account number");
accountNumber = accountNumber.Replace("-", "");
if (accountNumber.Length < 15 || accountNumber.Length > 16)
throw new InvalidDataException(String.Format("Needs to be a 15 or 16 character string. {0} is {1} characters", accountNumber, accountNumber.Length));
Bank = accountNumber.Substring(0, 2);
Branch = accountNumber.Substring(2, 4);
Account = accountNumber.Substring(6, 7);
Suffix = accountNumber.Substring(13, accountNumber.Length - 13);
}
}
public class CreditCardAccount : IAccountNumber
{
public string ToCondensedString()
{
throw new NotImplementedException();
}
public string ToExpandedString()
{
throw new NotImplementedException();
}
}
public class GIFTSCreditBatch
{
public const string FILETYPE = "7";
public const string RECORDTYPEHEADER = "1";
public const string RECORDTYPEFOOTER = "3";
private DateTime fileCreationDate;
private DateTime fileDueDate;
private IAccountNumber originatorAccountNumber;
public DateTime FileCreationDate
{
get { return fileCreationDate; }
set { fileCreationDate = value; }
}
public DateTime FileDueDate
{
get { return fileDueDate; }
set
{
if (HelperMethods.IsValidFileDueDate(value))
fileDueDate = value;
else
throw new InvalidDataException("Not a valid File Due date");
}
}
public IAccountNumber OriginatorAccountNumber
{
get { return originatorAccountNumber; }
set { originatorAccountNumber = value; }
}
public bool AsBulkFile { get; set; }
public List<GIFTSCreditRecordTransaction> Transactions { get; set; }
public GIFTSCreditBatch(IAccountNumber ourAccount, DateTime dueDate, bool asBulkFile = false)
{
this.originatorAccountNumber = ourAccount;
this.FileDueDate = dueDate;
this.AsBulkFile = asBulkFile;
FileCreationDate = DateTime.Now;
Transactions = new List<GIFTSCreditRecordTransaction>();
}
/// <summary>
/// Calculates the hash total to use in the footer
/// </summary>
/// <returns></returns>
private string CalcHash()
{
long hashTotal = 0;
foreach (GIFTSCreditRecordTransaction trans in Transactions)
{
string subString = trans.OtherPartyAccountNumber.ToCondensedString().Substring(2, 11);
long asNumber = Convert.ToInt64(subString);
hashTotal += asNumber;
}
hashTotal = hashTotal % 100000000000;
string hash = hashTotal.ToString();
hash.PadLeft(11);
return hash;
}
/// <summary>
/// Outputs to a csv.
/// Uses the AsBulkFile property to set the file mode
/// </summary>
/// <returns>A string with line breaks ready to be saved to file</returns>
public string ToCSV()
{
StringBuilder sb = new StringBuilder();
sb.AppendLine(HeaderToCSV());
foreach (GIFTSCreditRecordTransaction trans in Transactions)
{
sb.AppendLine(trans.ToCSV(AsBulkFile));
}
sb.AppendLine(FooterToCSV());
return sb.ToString();
}
private string HeaderToCSV()
{
string blank = "";
StringBuilder sb = new StringBuilder();
sb.Append(RECORDTYPEHEADER);
sb.Append(',');
sb.Append(blank);
sb.Append(',');
sb.Append(blank);
sb.Append(',');
sb.Append(blank);
sb.Append(',');
sb.Append(originatorAccountNumber.ToCondensedString());
sb.Append(',');
sb.Append(FILETYPE);
sb.Append(',');
sb.Append(FileDueDate.ToString("yyMMdd"));
sb.Append(',');
sb.Append(FileCreationDate.ToString("yyMMdd"));
sb.Append(',');
if (!AsBulkFile)
sb.Append("I");
return sb.ToString();
}
private string FooterToCSV()
{
int transactionAmountTotal = Transactions.Sum(t => t.TransactionAmount);
int transactionRecordCount = Transactions.Count;
string hashTotal = CalcHash();
StringBuilder sb = new StringBuilder();
sb.Append(RECORDTYPEFOOTER);
sb.Append(',');
sb.Append(transactionAmountTotal.ToString("000000000000"));
sb.Append(',');
sb.Append(transactionRecordCount.ToString("000000"));
sb.Append(',');
sb.Append(hashTotal.PadLeft(11, '0'));
return sb.ToString();
}
}
public class GIFTSCreditRecordTransaction
{
public const string RECORDTYPE = "2";
private IAccountNumber otherPartyAccountNumber;
private int transactionAmount;
private string otherPartyName;
private string otherPartyReference;
private string otherPartyCode;
private string otherPartyAlphaReference;
private string otherPartyParticulars;
private string originatorName;
private string originatorCode;
private string originatorReference;
private string originatorParticulars;
public IAccountNumber OtherPartyAccountNumber
{
get { return otherPartyAccountNumber; }
set { otherPartyAccountNumber = value; }
}
public TransactionCodes TransactionCode;
/// <summary>
/// The amount in cents
/// </summary>
public int TransactionAmount
{
get { return transactionAmount; }
set { transactionAmount = value; }
}
public string OtherPartyName
{
get { return otherPartyName; }
set
{
if (value.Length > 20)
otherPartyName = value.Substring(0, 20);
else
otherPartyName = value;
}
}
public string OtherPartyReference
{
get { return otherPartyReference; }
set
{
if (value.Length > 12)
otherPartyReference = value.Substring(0, 12);
else
otherPartyReference = value;
}
}
public string OtherPartyCode
{
get { return otherPartyCode; }
set
{
if (value.Length > 12)
otherPartyCode = value.Substring(0, 12);
else
otherPartyCode = value;
}
}
public string OtherPartyAlphaReference
{
get { return otherPartyAlphaReference; }
set
{
if (value.Length > 12)
otherPartyAlphaReference = value.Substring(0, 12);
else
otherPartyAlphaReference = value;
}
}
public string OtherPartyParticulars
{
get { return otherPartyParticulars; }
set
{
if (value.Length > 12)
otherPartyParticulars = value.Substring(0, 12);
else
otherPartyParticulars = value;
}
}
public string OriginatorName
{
get { return originatorName; }
set
{
if (value.Length > 20)
originatorName = value.Substring(0, 20);
else
originatorName = value;
}
}
public string OriginatorCode
{
get { return originatorCode; }
set
{
if (value.Length > 12)
originatorCode = value.Substring(0, 12);
else
originatorCode = value;
}
}
public string OriginatorReference
{
get { return originatorReference; }
set
{
if (value.Length > 12)
originatorReference = value.Substring(0, 12);
else
originatorReference = value;
}
}
public string OriginatorParticulars
{
get { return originatorParticulars; }
set
{
if (value.Length > 12)
originatorParticulars = value.Substring(0, 12);
else
originatorParticulars = value;
}
}
public string ToCSV(bool asBulkFile)
{
StringBuilder sb = new StringBuilder();
sb.Append(RECORDTYPE);
sb.Append(",");
sb.Append(OtherPartyAccountNumber.ToCondensedString());
sb.Append(",");
sb.Append(((int)TransactionCode).ToString("00"));
sb.Append(",");
sb.Append(TransactionAmount.ToString("000000000000"));
sb.Append(",");
sb.Append(OtherPartyName);
sb.Append(",");
sb.Append(OtherPartyReference);
sb.Append(",");
sb.Append(OtherPartyCode);
sb.Append(",");
sb.Append(OtherPartyAlphaReference);
sb.Append(",");
sb.Append(OtherPartyParticulars);
sb.Append(",");
sb.Append(OriginatorName);
sb.Append(",");
sb.Append(OriginatorCode);
sb.Append(",");
sb.Append(OriginatorReference);
sb.Append(",");
if (!asBulkFile)
sb.Append(OriginatorParticulars);
return sb.ToString();
}
}
}