Question

大家早上好，

我已经为应用程序创建了设置向导，当我运行应用程序时，我可以看到来自txt文件的数据，这些文件位于instaled文件夹中，但是当我在txt文件中尝试编辑数据时，我遇到了错误

mscorlib.dll中发生未处理的“System.UnauthorizedAccessException”类型异常附加信息：访问路径'C：\ Program Files（x86）\ Jean-Paul Sartre Variety Theater \ CustomerStorage.txt'被拒绝。

string text = "";
StreamWriter sw = new StreamWriter("CustomerStorage.txt");  //THAT LINE GENERATE ERROR  

foreach (var item in Customers)
{
    text = item.Value.CustomerName + "*" + item.Value.CustomerEmail + "*" + (int)item.Value.Customertype + "*" + item.Value.BookDate + "*" + item.Value.CustomerNo + "*" + item.Value.BookedPlayName + "*" + item.Value.PaymentStatus + "*" + item.Value.SeatNoOne + "*" + item.Value.SeatNoTwo + "*" + item.Value.SeatNoThree + "*" + item.Value.SeatNoFour + "*" + item.Value.SeatNoFive + "*" + item.Value.SeatNoSix + "*" + item.Value.PriceToPay + "*" + item.Value.GetPlayNo + "*" + item.Value.TotalNumberOfSeatsCustomer + "*";
    if (item.Value.Customertype == CustomerType.GoldMember)
    {
        GoldMember gm = (GoldMember)item.Value;
        //saving gold member with new created date
        gm.CreatedDate = gm.CreatedDate;
        text += gm.CreatedDate + "*";
    }
    sw.WriteLine(text);
}
sw.Close();

我不知道在创建设置向导时是否犯了任何错误，我在将txt文件添加到文件系统文件夹时应该做出类似的许可。

Answer 1

格兰特访问方法解决了这个问题，谢谢你们。

public bool GrantAccess(string fullPath)
    {
        DirectoryInfo dInfo = new DirectoryInfo(fullPath);
        DirectorySecurity dSecurity = dInfo.GetAccessControl();
        dSecurity.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit, AccessControlType.Allow));
        dInfo.SetAccessControl(dSecurity);
        return true;
    }

C＃mscorlib.dll中发生未处理的“System.UnauthorizedAccessException”类型异常

1 个答案: