出错:未将对象引用设置到对象的实例。jmail.POP3Class PopMail = new jmail.POP3Class();
PopMail.Connect("xiaoxingchi123","123456zxc","pop3.163.com",110); TextBox1.Text = PopMail.Count.ToString();
int n;
n = PopMail.Count;
for(int i=1;i<=n;i++)
{
Mail.ContentTransferEncoding="base64";
Mail.Encoding="base64";
Mail.Charset="GB2312";
Response.Write("主题:" + Mail.Subject[i] + "<br/>");
}
PopMail.Connect("xiaoxingchi123","123456zxc","pop3.163.com",110); TextBox1.Text = PopMail.Count.ToString();
int n;
n = PopMail.Count;
for(int i=1;i<=n;i++)
{
Mail.ContentTransferEncoding="base64";
Mail.Encoding="base64";
Mail.Charset="GB2312";
Response.Write("主题:" + Mail.Subject[i] + "<br/>");
}
Response.Write("主题:" + Mail.Subject[i] + "<br/>");
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。源错误:
行 37: Mail.Encoding="base64";
行 38: Mail.Charset="GB2312";
行 39: Response.Write("主题:" + Mail.Subject[i] + "<br/>");
行 40: }
行 41:
源文件: f:\web\popmail\webform1.aspx.cs 行: 39 堆栈跟踪:
[NullReferenceException: 未将对象引用设置到对象的实例。]
PopMail.WebForm1.Page_Load(Object sender, EventArgs e) in f:\web\popmail\webform1.aspx.cs:39
System.Web.UI.Control.OnLoad(EventArgs e)
System.Web.UI.Control.LoadRecursive()
System.Web.UI.Page.ProcessRequestMain()