Public Overridable Function LoadPostData(postDataKey As String, _
   postCollection As NameValueCollection) As Boolean

    Dim presentValue As String = Text
    Dim postedValue As String = postCollection(postDataKey)

    If (presentValue Is Nothing) OrElse (Not presentValue.Equals(postedValue)) Then 
        Text = postedValue
        Return True
    End If
    Return False
End Function

public virtual bool LoadPostData(string postDataKey,
   NameValueCollection postCollection) {

   String presentValue = Text;
   String postedValue = postCollection[postDataKey];

   if (presentValue == null || !presentValue.Equals(postedValue)){
      Text = postedValue;
      return true;
   }
   return false;
}