我有一个绑定到XAML文件的类 在第一次调用它时,字段selectedudl = =。
你知道为什么会这样吗? 我原以为它是=“”..
type QuotesViewModel() =
inherit ViewModelBase()
let mutable histo = Array.empty
let mutable selectedudl = ""
member x.GetUnderlyings = seq { yield "one"; yield "two"}
member x.SelectedUdl
with get() = selectedudl
and set value =
selectedudl <- value
x.OnPropertyChanged <@ x.SelectedUdl @>
x.OnPropertyChanged <@ x.SelectedGraph @>
member x.SelectedGraph
with get() =
let graph = asyncquotes.visualizehistoForUdl selectedudl
let host = new System.Windows.Forms.Integration.WindowsFormsHost()
host.Child <- new ChartControl(graph, Dock = DockStyle.Fill)
host