VB.NET Order of Events

I have some code in a button click event that run some SQL and returns data. When the button is clicked, I want the label text to say "Please Wait ... running query." The problem is that my label text does not change, it just jumps right into running the query - it is as if it skips changing the label. If I remove the code that comes after the label text change, then it works properly. How do I get it to change the label text first - then run the additional code?

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Label6.Text = "Please Wait ... running query"

        Try
            [My Additional Code is here]
        Catch Ex As Exception
            Label6.Text = Ex.ToString
        End Try

End Sub

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