Using protected overides to control enter key

[AndyNakamura]

I have a simple form with just three textboxes and a button.

If you click the button then the content of textbox1 & textbox2 are concatenated together and displayed in textbox3
I want to allow the user to hit enter to do the same thing with the enter key. Is this the correct way?

Option Explicit On

Public Class Form1

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
TextBox3.Text = TextBox1.Text & " " & TextBox2.Text
End Sub

Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, _
ByVal keyData As System.Windows.Forms.Keys) As Boolean

If keyData = Keys.Enter Then
TextBox3.Text = TextBox1.Text & " " & TextBox2.Text
Return True
End If
Return False
End Function
End Class

I notice solutions often have

Return MyBase.ProcessCmdKey(msg, keyData)

But until I know what this does I thought I'd try without it. Anyone can explain I'd be grateful.

Andy

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