Local Variable is Never Used misleading with Initializer

This generates a local variable is never used error which I find misleading because my_rtb is assigned to some_parent_object so it is added to that object and used.

RichTextBox my_rtb = new RichTextBox

                                             {

                                                 Parent = some_parent_object,

                                                 Dock = DockStyle.Fill,

                                                 Name = theGraphContext.sensorName

                                             };




If I do it this way
RichTextBox my_rtb = new RichTextBox
                                             {
                                              // Parent = some_parent_object,
                                                 Dock = DockStyle.Fill,
                                                 Name = theGraphContext.sensorName
                                             };
  my_rtb.Parent = some_parent_object;

I trade the local variable warning for the Use Initializer warning. I imagine this applies to all objects that support the Parent property in this manner.