title: What does := mean in vb.net?
body: <p>We have this method call:</p>
  
  <pre><code>SendAck(AppData:=AppData, Status:=Status, StatusMessage:=StatusMessage, IsApplication:=IsApplication)
  </code></pre>
  
  <p>And here is the definition:</p>
  
  <pre><code>Private Sub SendAck(ByVal AppData As XDocument, ByVal Status As Boolean, ByVal StatusMessage As String, ByVal IsApplication As Boolean)
  </code></pre>
  
  <p>Why does the call have the parameters with the ":=". I'm just curious.</p>