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DataSourceUpdateMode.Never para o campo no momento do Update

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edusoft

Boa tarde, alguem poderia me ajudar?

Gostaria que no momento de gravar fosse declarado DataSourceUpdateMode.Never para o campo vazio (DatanascimentoMaskedTextBox), abaixo segue a minha tentativa porem não funciona.

    Private Sub CadastroBindingNavigatorSaveItem_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CadastroBindingNavigatorSaveItem.Click

        If DatanascimentoMaskedTextBox.Text = "  /  /" Then
            DatanascimentoMaskedTextBox.Text = Nothing
            DatanascimentoMaskedTextBox.DataBindings.DefaultDataSourceUpdateMode = DataSourceUpdateMode.Never
            CodigoTextBox.Focus()
        End If

        Try
            Me.Validate()
            Me.CadastroBindingSource.EndEdit()
            Me.TableAdapterManager.UpdateAll(Me.BancodedadosDataSet)
            MsgBox("Update successful")
        Catch ex As Exception
            MsgBox("Update failed")
        End Try

    End Sub

Obrigado, abraços. Edu

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edusoft

Oi amigo, então

Só quero acertar a alteração, não grava data em branco. Obrigado

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