VS 2019 StackOverflorException on closing form

Good Afternoon All,

I'm hoping that someone can assist me with this one as I'm struggling.

I have the following code on a form to display and update a datagridview with data from a MySQL Database.

Code:

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Public Class RadfrmEmailNotifications
    Private MySQLBS As New BindingSource
    Private MySQLDT As New DataTable
    Private MySQLDA As MySqlDataAdapter

    Private Sub RadfrmEmailNotifications_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Me.FormElement.TitleBar.RightToLeft = False
        Me.MdiParent = RibfrmMain

        gridviewEmailNotifications.DataSource = MySQLBS
        GetData("SELECT tblemail_anouncement_users.urn AS 'User ID', tblemail_anouncement_users.first_name AS 'Users First Name', tblemail_anouncement_users.surname AS 'Users Surname', tblemail_anouncement_users.email AS 'Users Email' FROM tblemail_anouncement_users ORDER BY tblemail_anouncement_users.surname ASC;")
        gridviewEmailNotifications.BestFitColumns()
        gridviewEmailNotifications.MasterTemplate.AutoSizeColumnsMode = Telerik.WinControls.UI.GridViewAutoSizeColumnsMode.Fill
        gridviewEmailNotifications.Focus()
    End Sub

    Private Sub GetData(ByVal selectCommand As String)
        MySQLDA = New MySqlDataAdapter(selectCommand, strDBConnectionString)
        Dim commandBuilder As MySqlCommandBuilder = New MySqlCommandBuilder(MySQLDA)
        Dim table As DataTable = New DataTable With {
            .Locale = CultureInfo.InvariantCulture
        }
        MySQLDA.Fill(table)
        MySQLBS.DataSource = table
    End Sub

    Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
        MySQLDA.Update(CType(MySQLBS.DataSource, DataTable))
        GetData(MySQLDA.SelectCommand.CommandText)
        btnSave.Enabled = False
    End Sub

    Private Sub btnRefresh_Click(sender As Object, e As EventArgs) Handles btnRefresh.Click
        GetData(MySQLDA.SelectCommand.CommandText)
    End Sub

    Private Sub gridviewEmailNotifications_CellValueChanged(sender As Object, e As GridViewCellEventArgs) Handles gridviewEmailNotifications.CellValueChanged
        btnSave.Enabled = True
    End Sub

    Private Sub btnCancel_Click(sender As Object, e As EventArgs) Handles btnCancel.Click, MyBase.FormClosing
        If btnSave.Enabled = True Then
            RadMessageBox.SetThemeName("CrystalDark")
            Dim radmsgbox As DialogResult = RadMessageBox.Show("Changes have been made to this list but have not been saved." & vbCrLf & "" & vbCrLf &
                                                              "Would you like to save these changes before closing this window?", "", MessageBoxButtons.YesNo, RadMessageIcon.Question)
            If radmsgbox = DialogResult.Yes Then
                MySQLDA.Update(CType(MySQLBS.DataSource, DataTable))
            End If
        Else
            Me.Close()
        End If
    End Sub

---

Everything is working perfectly with the DataGridView however when I try and close the form I am getting the below error on the

Code:

---

Me.Close

---

line.

System.StackOverflowException
HResult=0x800703E9
Source=<Cannot evaluate the exception source>
StackTrace:
<Cannot evaluate the exception stack trace>

I have been looking online for further information on this however it is all referring to an infinite loop however I can't seem to see where this loop is as I haven't written one in. I'm wondering if it could be related to the datagridview and the data sync however I don't know enough about how these work to determine if this is te cause.

Can someone please assist me with it.

Thanks in advanced

Luke