If Else statement result in VB.net is random

My If Else statement in VB.net is randomly displaying either of the If or ElseIf condition that I made.

What I'm trying to do is when a DataGridView checkbox is selected and the LinkLabel is clicked, The system will get the row which is selected and it will update the "EditTime" column to either "ds" or "en" depending on what is already in the column

So, if the data in the "EditTime" column is set to "ds", the If Else condition should change it to "en" and vice versa.

Dim en As OleDbCommand = New OleDbCommand("SELECT * FROM [Roster1]", myConnection)
        Dim d As OleDbDataReader = en.ExecuteReader
        Dim edt As String = ""
        While d.Read
            edt = d("EditTime").ToString
        End While


        Dim CheckedRows =
            (
                From Rows In AdminTabDisplay.Rows.Cast(Of DataGridViewRow)()
                Where CBool(Rows.Cells("ck").Value) = True
            ).ToList
        If CheckedRows.Count > 0 Then

        Dim sb As New System.Text.StringBuilder
        For Each row As DataGridViewRow In CheckedRows
            sb.AppendLine(row.Cells("Employee ID").Value.ToString)

        Next

            If edt = "ds" Then
                Dim st As String = sb.ToString
                Dim value As Integer = CInt(st)
                Dim cmd As OleDbCommand = New OleDbCommand("UPDATE [Roster1] SET [EditTime] = @pw WHERE [Employee ID] = @v", myConnection)
                cmd.Parameters.AddWithValue("@pw", "en")
                cmd.Parameters.AddWithValue("@v", value)
                cmd.ExecuteNonQuery()
                MsgBox("Edit enabled!")

            ElseIf edt = "en" Then
                Dim st As String = sb.ToString
                Dim value As Integer = CInt(st)
                Dim cmd As OleDbCommand = New OleDbCommand("UPDATE [Roster1] SET [EditTime] = @pw WHERE [Employee ID] = @v", myConnection)
                cmd.Parameters.AddWithValue("@pw", "ds")
                cmd.Parameters.AddWithValue("@v", value)
                cmd.ExecuteNonQuery()
                MsgBox("Edit disabled!")
            End If

This is my code. Yet, the output seems to be a bit randomized.