无效的列名sql异常未处理错误

Question

我无法处理sql异常，列名无效？ 这是代码，请告诉我我在哪里做错了？ 我尝试了很多次，却找不到错误？ 所以我该如何纠正错误，请您帮助我。

我是初学者。 先感谢您

Private Sub ProductBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ProductBindingNavigatorSaveItem.Click
    Me.Validate()
    Me.ProductBindingSource.EndEdit()
    Me.TableAdapterManager.UpdateAll(Me.InvoiceDataSet)
End Sub

Private Sub Product_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    'TODO: This line of code loads data into the 'InvoiceDataSet1.Product' table. You can move, or remove it, as needed.
    Me.ProductTableAdapter1.Fill(Me.InvoiceDataSet1.Product)
    'TODO: This line of code loads data into the 'InvoiceDataSet.Product' table. You can move, or remove it, as needed.
    Me.ProductTableAdapter.Fill(Me.InvoiceDataSet.Product)
    cmd.Connection = cs

End Sub


Private Sub FillByCodeToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FillByCodeToolStripButton.Click
    Try
        Me.ProductTableAdapter.FillByCode(Me.InvoiceDataSet.Product, Code_SKUToolStripTextBox.Text)
    Catch ex As System.Exception
        System.Windows.Forms.MessageBox.Show(ex.Message)
    End Try

End Sub

Private Sub btnNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnNew.Click
    ProductBindingSource.AddNew()
    Code___SKUTextBox.Focus()
End Sub

Private Sub btnModify_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnModify.Click
    ProductBindingSource.ResetCurrentItem()

End Sub

Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
    ProductBindingSource.RemoveCurrent()
End Sub

Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
    Try
        Me.Validate()
        Me.ProductBindingSource.EndEdit()
        Me.TableAdapterManager.UpdateAll(Me.InvoiceDataSet)
        MsgBox("One Record is added to PRODUCT as " & Code___SKUTextBox.Text)
    Catch ex As Exception
        System.Windows.Forms.MessageBox.Show(ex.Message)
    End Try
End Sub

Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
    Try
        Me.ProductTableAdapter.FillByCode(Me.InvoiceDataSet.Product, txtSearch.Text)
    Catch ex As System.Exception
        System.Windows.Forms.MessageBox.Show(ex.Message)
    End Try
End Sub

Private Sub btnSelect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSelect.Click
    OpenFileDialog1.ShowDialog()
    txtSelect.Text = OpenFileDialog1.FileName
    Product_PicturePictureBox.Image = Image.FromFile(txtSelect.Text)
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    If Code___SKUTextBox.Text <> "" And Product_Name___DescTextBox.Text <> "" And Product_priceTextBox.Text <> "" And Price_Disc___TextBox.Text <> "" And Product_Tax___TextBox.Text <> "" Then
        cs.Open()
        Dim sql = "INSERT INTO Product(Code___SKU, Product_Name___Desc, Product_price, Price_Disc___, Product_Tax___)VALUES(@Code___SKU, @Product_Name___Desc, @Product_price, @Price_Disc___, @Product_Tax___)"
        Using cs = New SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Invoice\Invoice.mdf;Integrated Security=True;User Instance=True")
            Using cmd = New SqlCommand(sql, cs)
                cmd.Parameters.AddWithValue("@Code___SKU", Code___SKUTextBox.Text)
                cmd.Parameters.AddWithValue("@Product_Name___Desc", Product_Name___DescTextBox.Text)
                cmd.Parameters.AddWithValue("@Product_price", Int32.Parse(Product_priceTextBox.Text))
                cmd.Parameters.AddWithValue("@Price_Disc___", Int32.Parse(Price_Disc___TextBox.Text))
                cmd.Parameters.AddWithValue("@Product_Tax___", Int32.Parse(Product_Tax___TextBox.Text))
                cs.Open()
                cmd.ExecuteNonQuery()
            End Using
        End Using

    End If

End Sub
End Class