使用会话显示用户名(ASP.NET)

时间:2013-02-18 07:43:33

标签: asp.net sql vb.net visual-studio-2010 oledb

我正在使用Visual Studio 2010作为我的IDE并使用Visual Basic创建一个简单的网站我不知道如果可能但我可以使用会话显示刚登录到我的LoginForm的用户名到其他表单吗?

我不够理解它,但有人能告诉我,这是在会话中包含价值的正确方法吗?我怎样才能将它显示给另一种形式?

Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
        Dim connect As String = "Provider=Microsoft.ACE.OleDb.12.0;" & _
        "Data Source=C:\Users\cleanfuel\Documents\Visual Studio 2010\Projects\FinalProject4a2p\FinalProject4a2p\bin\DBFinalProject.accdb"
        Dim query As String
        query = "Select Count(*) From tblAccount Where Username = ? And UserPass = ?"
        Dim result As Integer = 0
        Using conn As New OleDbConnection(connect)
            Using cmd As New OleDbCommand(query, conn)
                cmd.Parameters.AddWithValue("", TxtUser.Text)
                cmd.Parameters.AddWithValue("", txtPass.Text)
                conn.Open()
                result = DirectCast(cmd.ExecuteScalar(), Integer)
            End Using
        End Using

        If result > 0 Then
            Response.Redirect("Menus.aspx")
            Session("User") = TxtUser.Text
            Session("Pass") = txtPass.Text
        Else
            Response.Write("<td>")
            Response.Write("<div align=""center"">")
            Response.Write("<font color='white'>")
            Response.Write("Unable to Login, Invalid Username or Password! </font>")
            Response.Write("</div>")
            Response.Write("</td>")
        End If
    End Sub

3 个答案:

答案 0 :(得分:3)

在母版页中设置标签(如果有的话),将会话中的用户名分配给标签,它将显示在所有页面中。如果您没有母版页,则可以在页面中设置标签(您希望显示用户名),然后将标签Text属性设置为会话中的值。

您在会话中存储值的方式是正确的,一旦值存储在会话中,您应该重定向到Menu.aspx,如:

If result > 0 Then
            Session("User") = TxtUser.Text
            Session("Pass") = txtPass.Text
            Response.Redirect("Menus.aspx")

....

要访问它们,您可以这样做:

labelUserName.Text = Session("User").ToString()

答案 1 :(得分:2)

使用FormsAuthentication,您只需在表单上添加LoginName控件,或从HttpContext.Current.User.Identity.Name获取UserName

答案 2 :(得分:0)

其他用户提供的答案也可以使用,但我找到了这个并成功获得了我想要的结果。

这是我的代码:

Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
        Dim connect As String = "Provider=Microsoft.ACE.OleDb.12.0;" & _
        "Data Source=C:\Users\cleanfuel\Documents\Visual Studio 2010\Projects\FinalProject4a2p\FinalProject4a2p\bin\DBFinalProject.accdb"
        Dim query As String
        query = "Select Count(*) From tblAccount Where Username = ? And UserPass = ?"
        Dim result As Integer = 0
        Using conn As New OleDbConnection(connect)
            Using cmd As New OleDbCommand(query, conn)
                cmd.Parameters.AddWithValue("", TxtUser.Text)
                cmd.Parameters.AddWithValue("", txtPass.Text)
                conn.Open()
                result = DirectCast(cmd.ExecuteScalar(), Integer)
            End Using
        End Using

        If result > 0 Then
            Dim myCookie As HttpCookie = New HttpCookie("USER")
            myCookie.Value = TxtUser.Text
            Response.Cookies.Add(myCookie)

            Response.Redirect("Menus.aspx")
        Else
            Response.Write("<td>")
            Response.Write("<div align=""center"">")
            Response.Write("<font color='white'>")
            Response.Write("Unable to Login, Invalid Username or Password! </font>")
            Response.Write("</div>")
            Response.Write("</td>")
        End If

    End Sub

我使用HTTPcookie代替会话,因为我无法满足自己,因为它没有显示我想要显示的值,并且它总是一遍又一遍地向我显示相同的错误。

以下是要显示的代码:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
        If Request.Cookies("USER") Is Nothing Then
            Label7.Text = "No Account Logged In"
        Else
            Dim aCookie As HttpCookie = Request.Cookies("USER")
            Label7.Text = Convert.ToString(Server.HtmlEncode(aCookie.Value))
        End If
    End Sub