网格仅在主网格窗口关闭时更新

Question

我必须形成一个包含网格视图然后弹出一个弹出窗口，用户可以编辑gridview的值，它保存数据ok但是只有当我关闭主gridview窗口时

但是数据没有在打击网格中被引用，直到我关闭主要表单我从网格双击调用表单

    Dim invId As Object = dgDeliverys.Rows(e.RowIndex).Cells("r3DeliveryId").Value
    Dim frmedit As New frmedit(invId)
    frmedit.ShowDialog()
    BindGrid()

然后在新的构造函数中，我使用以下

    Public Sub New(ByVal recordId As String)



    'Call to MyBase.New must be the very first in a constructor.

    MyBase.New()


    _recordid = recordId
    ' This call is required by the Windows Form Designer.

    InitializeComponent()

    records = threeContext.GetAllDeliverysByRecordId(recordId)
    txtQty.Text = records.Item(0).qty
   End Sub

我的ok按钮代码如下

    records.Item(0).qty = txtQty.Text

    Try

        threeContext.dbContext.SaveChanges()



        MessageBox.Show("Changes saved to the database.")
        Close()

当我关闭编辑行框时，即使我调用了以下构成的绑定方法，它也不会更新数据

  Private Sub BindGrid()
    Dim bs As New BindingSource
    Dim cfglocation As Int16
    cfglocation = cfb.StoreLocation

    bs.DataSource = (From u In threeContext.R3Delivery Where u.isprocessed = True AndAlso u.location = 1
                      Select u)


    bs.ResetBindings(True)
    dgDeliverys.DataSource = bs
End Sub