我如何將一個命令/屬性綁定到FSharp.ViewModule中的PropertyChanged

在FSarp.ViewModule我有一個簡單的視圖，點擊該按鈕會在左邊的文本框中根據正確的文本框生成一個隨機數。我將如何綁定右側文本框中的更改（例如，手動輸入數字），以便在不單擊按鈕的情況下通過調用clickcommand或click（）方法來更新左側文本框？我嘗試了self.DependencyTracker和self.RaisePropertyChanged的不同組合，但無法獲得正確的語法。我如何將一個命令/屬性綁定到FSharp.ViewModule中的PropertyChanged

這是視圖：

的XAML：

<Button x:Name="button" Content="Button" HorizontalAlignment="Left" Height="55" Margin="130,55,0,0" VerticalAlignment="Top" Width="115" Command="{Binding Click}"/> 
<TextBox x:Name="textBox1" HorizontalAlignment="Left" Height="50" Margin="30,55,0,0" TextWrapping="Wrap" Text="{Binding Data, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top" Width="70"/> 
<TextBox x:Name="textBox2" HorizontalAlignment="Left" Height="50" Margin="280,55,0,0" TextWrapping="Wrap" Text="{Binding Data2, UpdateSourceTrigger=PropertyChanged}" VerticalAlignment="Top" Width="70"/>

和視圖模型：

type RandomX = { 
    DataOut: int 
    DataIn: int 
    } 

type MainRandomModel(model:RandomX) as self = 
    inherit ViewModelBase() 
    let rnd = System.Random() 

    let defaultNums = model //{DataOut = 100; DataIn = 100} 

    let data = self.Factory.Backing(<@ self.Data @>, defaultNums.DataOut) 
    let data2 = self.Factory.Backing(<@ self.Data2 @>, defaultNums.DataIn) 
    let click() = data.Value <- rnd.Next(data2.Value) 
    let clickcommand = self.Factory.CommandSync(click) 
    member self.Click = clickcommand 
    member self.Data with get() = data.Value and set v = data.Value <- v 
    member self.Data2 with get() = data2.Value and set v = data2.Value <-v 

    new() = MainRandomModel({DataOut=20;DataIn=10})

來源

2016-05-31 s952163

你只需要調用click功能的二傳手對於Data2：

member self.Data2 with get() = data2.Value 
        and set v = data2.Value <- v ; click()

來源

2016-05-31 16:07:32

我如何將一個命令/屬性綁定到FSharp.ViewModule中的PropertyChanged

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