Abnormal Login Page Behavior

[Raziiq]

Hello i m new to ASP.net, i have created a form and have these controls on it

1. Login Name Textbox
2. Password Textbox
3. A button (Form Submit Button not the HTML Submit button)
4. A label named lblNote to show a simple msg that login is successful or not.

I have a Database named LoginSite.mdb which is a part of my project. This database has only loginName and Password in it.

Now i wrote this code in my button click event.

Imports System.Data.OleDb
Partial Class MainForm
    Inherits System.Web.UI.Page

    Dim dbConn As OleDbConnection
    Dim dbcmd As New OleDbCommand
    Dim rs As OleDbDataReader
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        dbConn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;data source=" & Server.MapPath("LoginSite.mdb"))
        dbconn.Open()
        dbcmd.Connection = dbConn
      
    End Sub

    Protected Sub btnLogin_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnLogin.Click
        Try
            dbcmd.CommandText = "Select * from LoginTBL"
            rs = dbcmd.ExecuteReader()

            While (IsDBNull(rs))
                If (rs("loginName").Equals(txtLoginName.Text) = True And rs("loginPassword").Equals(txtPassword.Text) = True) Then
                    lblNote.Visible = True
                    lblNote.Text = "You have been Successfully Logged in"
                Else
                    lblNote.Visible = True
                    lblNote.Text = "Error Logging In !!!"
                End If
            End While

        Catch ex As Exception
            lblNote.Text = "Error Logging In !!!"
        End Try
    End Sub
End Class

The problem is that i m not able to see the lblNote label with any kind of information about the login being successful or not. lblNote is not being displayed.

Please Help !!!

[Raziiq]

Got It

The Error was in this Line
while (isDbNull(rs))
it should be like this
While (rs.read)