Please help how could i pass the value from Independent form to a child form..

in my declaration from MDIParent form i declared child form as frmSMRP then in the frmSMRP i have declare one new form as form1

here is my code below.

declaring child form under MDIParent form

Code:
     Dim FrmSMRPOffline As New FrmSMRPOffline
      FrmSMRP = New FrmSMRPOffline
      FrmSMRP.MdiParent = Me
      FrmSMRP.Show()
      FrmSMRP.WindowState = FormWindowState.Maximized
Declaring independent form under child form
Code:
   Dim form1 As New FrmHistorydetails
        form1.Owner = mdiTSMobile
        form1.ShowDialog(Me)
i have tried passing the value under independent form but did not work
Code:
frmSMRP.myID.text = form1.myID.text
now, how could i pass the value from independent form into child form?
please help..