Why am I getting the "Object reference not set to an instance of the object" exception?

Asked Apr 12 '18 at 01:16

Active Apr 12 '18 at 01:26

Viewed 27 times

This is the piece of code where the exception is thrown:

Private Sub btnNext_Click(sender As Object, e As EventArgs) Handles btnNext.Click
    File.OpenText("F:\CustomerRecords.txt")
    Dim customer As New CustomerRecord
    customer.strLastName = customersFile.ReadLine().ToString()
    lblLastName.Text = customer.strLastName
End Sub

edited Apr 12 '18 at 01:26

Héctor M.

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asked Apr 12 '18 at 01:16

Kathleen Fischer

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What's `customersFile` ? – gkb Apr 12 '18 at 01:26
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Possible duplicate of [What is a NullReferenceException, and how do I fix it?](https://stackoverflow.com/questions/4660142/what-is-a-nullreferenceexception-and-how-do-i-fix-it) – Alex Wiese Apr 12 '18 at 01:28

Why am I getting the "Object reference not set to an instance of the object" exception?

0 Answers0