我已尝试设置会话值,但每次我想显示用户在上一页中输入的文本时,它都会返回null
我有三页订阅者详细信息,包选择和银行详细信息,所有三个页面都互相跟随,用户已经填写了所有页面的所需信息,然后点击下一步,他们将被定向到一个页面,其中包含所有信息输入显示。
我似乎无法看到我做错了什么?
SubscriberDetails.aspx
protected void Button1_Click(object sender, EventArgs e)
{
string FullName = txtFullName.Text;
string CompanyName = txtCompanyName.Text;
string Vat = txtVAT.Text;
string ContactNumber = txtContactNumber.Text;
string Fax = txtFax.Text;
string District = txtDistrict.Text;
string Street = txtStreet.Text;
string City = txtCity.Text;
string Code = txtPostal.Text;
string Trading = txtTrading.Text;
string Id = txtID.Text;
string ContactPerson = txtContactPerson.Text;
string Email = txtEmail.Text;
Session["FullName"] = FullName;
Session["CompanyName"] = CompanyName;
Session["VAT"] = Vat;
Session["ContactNumber"] = ContactNumber;
Session["Fax"] = Fax;
Session["District"] = District;
Session["City"] = City;
Session["Street"] = Street;
Session["Code"] = Code;
Session["Trading"] = Trading;
Session["ID"] = txtID.Text;
Session["ContactPerson"] = ContactPerson;
Session["Email"] = Email;
}
Final.aspx
protected void Page_Load(object sender, EventArgs e)
{
if (string.IsNullOrEmpty((string)Session["Fullname"]))
{
lblFullName.Text = "N/A";
}
else
{
lblFullName.Text = Session["FullName"].ToString();
}
if (string.IsNullOrEmpty((string)Session["CompanyName"]))
{
lblCompanyName.Text = "N/A";
}
else
{
lblCompanyName.Text = Session["CompanyName"].ToString();
}
if (string.IsNullOrEmpty((string)Session["VAT"]))
{
lblVat.Text = "N/A";
}
else
{
lblVat.Text = Session["VAT"].ToString();
}
if (string.IsNullOrEmpty((string)Session["ContactNumber"]))
{
lblContactNumber.Text = "N/A";
}
else
{
lblContactNumber.Text = Session["ContactNumber"].ToString();
}
if (string.IsNullOrEmpty((string)Session["Fax"]))
{
lblFax.Text = "N/A";
}
else
{
lblFax.Text = Session["Fax"].ToString();
}
if (string.IsNullOrEmpty((string)Session["District"]))
{
lblDistrict.Text = "N/A";
}
else
{
lblDistrict.Text = Session["District"].ToString();
}
if (string.IsNullOrEmpty((string)Session["Street"]))
{
lblStreet.Text = "N/A";
}
else
{
lblStreet.Text = Session["Street"].ToString();
}
if (string.IsNullOrEmpty((string)Session["City"]))
{
lblCity.Text = "N/A";
}
else
{
lblCity.Text = Session["City"].ToString();
}
if (string.IsNullOrEmpty((string)Session["Code"]))
{
lblCode.Text = "N/A";
}
else
{
lblCode.Text = Session["Code"].ToString();
}
if (string.IsNullOrEmpty((string)Session["Trading"]))
{
lblTrading.Text = "N/A";
}
else
{
lblTrading.Text = Session["Trading"].ToString();
}
if (string.IsNullOrEmpty((string)Session["ID"]))
{
lblID.Text = "N/A";
}
else
{
lblID.Text = Session["ID"].ToString();
}
if (string.IsNullOrEmpty((string)Session["ContactPerson"]))
{
lblContactPerson.Text = "N/A";
}
else
{
lblContactPerson.Text = Session["ContactPerson"].ToString();
}
if (string.IsNullOrEmpty((string)Session["Email"]))
{
lblMail.Text = "N/A";
}
else
{
lblMail.Text = Session["Email"].ToString();
}
}
答案 0 :(得分:2)
那么你没有很多选择,如果发生这种情况你的会话有问题。也许每个其他请求都会启动一个新会话,检查以确保它没有发生。
检查:
Session.SessionID;
答案 1 :(得分:0)
我看到使用TextBox
控件的一段代码和使用Label
控件的较低代码。
你可能不是在读错了,是吗?
这只是一个FYI:如果我们填写“N / A”等值,我们会在网站上收到客户投诉。大多数人似乎更喜欢看空格,这也会简化你的代码:
lblVariable.Text = string.Format("{0}", Session["Variable"]);
显然,变量需要使用Session和Control变量名进行更改。