Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "Admin" And TextBox2.Text = "chujciwdupe" Then
            MsgBox("You are Now Logged In", MsgBoxStyle.Information, "Login")

        Else
            If TextBox1.Text = "" And TextBox2.Text = "" Then
                MsgBox("No Username and/or not password Found", MsgBoxStyle.Critical, "Error")
            Else
                If TextBox1.Text = "" Then
                    MsgBox("No Username Found ! ", MsgBoxStyle.Critical, "Error")
                Else
                    If TextBox2.Text = "" Then
                        MsgBox("No Password Found", MsgBoxStyle.Critical, "Error")
                    Else
                        MsgBox("Invalid Username And/Or Password", MsgBoxStyle.Critical, "Error")
                    End If
                End If
            End If
        End If
    End Sub
End Class