I am using the .Net/C# implementation of PDFClown.  I am having trouble setting the value of a checkbox, while textfields save just fine.  I have tried many variations of getting the checkbox value to change and here is my latest attempt.  Does anyone have any experience getting this to work?

                            ((it.stefanochizzolini.clown.documents.interaction.forms.CheckBox)_aField).Checked = Convert.ToBoolean(_strValue);