BC42017 Late bound resolution; runtime errors could occur

Question

Hello friends,

I am programming with VB.NET 2022. In this line of code:

With BsQRequestPorductHeader

TxtRequestPorductHeaderId.Text = .Current.Item("RequestPorductHeaderId").ToString

TxtRequestPorductHeaderNum.Text = .Current.Item("RequestPorductHeaderNum").ToString
```End With

I have this error:

Severity Code Description Project File Line Suppression State Warning (active) BC42017 Late bound resolution; runtime errors could occur.

How do you think I can fix this error?

![aa](/api/attachments/af8782b4-629b-4f58-ad7b-a721cbaf2f54?platform=QnA)

Answer 1

Hi @Shahab a

You should ensure that the types are explicitly defined.

Make sure the BsQRequestPorductHeader is properly typed and its type includes the Current property with the required items.

Try
    ' Assuming BsQRequestPorductHeader is a BindingSource or similar object
    If BsQRequestPorductHeader.Current IsNot Nothing Then
        ' Explicitly cast the items to the appropriate types
        Dim requestPorductHeaderId As Byte = Convert.ToByte(BsQRequestPorductHeader.Current("RequestPorductHeaderId"))
        Dim requestPorductHeaderNum As String = BsQRequestPorductHeader.Current("RequestPorductHeaderNum").ToString()

        TxtRequestPorductHeaderId.Text = requestPorductHeaderId.ToString()
        TxtRequestPorductHeaderNum.Text = requestPorductHeaderNum
    Else
        TxtRequestPorductHeaderId.Text = String.Empty
        TxtRequestPorductHeaderNum.Text = String.Empty
    End If
Catch ex As InvalidCastException
    MessageBox.Show("Error converting data: " & ex.Message)
Catch ex As Exception
    MessageBox.Show("An unexpected error occurred: " & ex.Message)
End Try

Best Regards.

Jiachen Li

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