从HiddenField asp.net绑定值

Question

I need to bind the value of a HiddenField control in the .aspx page to pass it along as a parameter for a stored procedure. The value will contain a Session variable value.

For a normal TextBox I do:

<asp:TextBox ID="NameTextBox" runat="server" Text='<%# Bind("Name") %>' />

For the HiddenField I would do something in the same way so I can somehow use Bind("UserID") and retrieve the value for it via the Session variable.

How could this be done?

Answer 1

You don't need to store the variable in a hidden field if it's already in a session variable.

Please take a look at this article for the correct way to use session state in asp.net:

http://msdn.microsoft.com/en-us/library/ms178581.aspx

Answer 2

You can use this class to get the needed session value from your class

Public Class Sessions

Public Shared Function GetValueOfSession(ByVal SessionName As String)
    If HttpContext.Current.Session(SessionName) Is Nothing Then
        Return Nothing
    Else
        Return HttpContext.Current.Session(SessionName).ToString
    End If
End Function

End Class