ok, no problem in below is my code ~~~
But i except use code way , can 't .......
And after i use other method , i use vb.net drog and drag the field by checkbox format in data sources then no code to entry also can't ....
So , i very surprise, how can i do , thx ?

 Private Sub Quotation_Add_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
         ReleaseCheckBox.DataBindings.Add("checked", QuohdrBindingSource, "release", True, DataSourceUpdateMode.OnPropertyChanged)
End Sub

Private Sub Quotation_Add_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        ReleaseCheckBox.DataBindings.Clear()
End Sub