GetTrendbars no response in WPF.Sample

[yorozu-mb]

There is no longer a response when using GetTrendbars in the APIService.cs (WPF.Sample project). I have had no issues previously. Note that I can still get a trendbar response if I use the winforms sample.

[yorozu-mb]

Looks like the CtidTraderAccountId in the response is now not correct.