问题升级到V4.0.0 Mvvmcross-β3后结合MVXSpinner

问题描述

我刚刚更新了我所有的Mvvmcross库到版本4.0.0-beta3版，它看起来像它可能已经打破了MVXSpinner的结合。

我得到在输出以下消息：

MvxBind：警告：5.40无法创建目标绑定的SelectedItem为SelectedColor结合

下面是XML：

 ＆LT; MvxSpinner
               机器人：layout_width =match_parent
               机器人：layout_height =WRAP_CONTENT
               机器人：ID =@ + ID / colorSpinner
               机器人：spinnerMode =下拉菜单
               机器人：layout_below =@ ID / maintoolbar
               本地：MvxBind =的ItemsSource ColorList;的SelectedItem SelectedColor/＆GT;
 

下面是视图模型：

 公共HomeViewModel（IKrizzmaService服务，IMvxMessenger信使）
        ：基地（服务，信使）
    {
        SelectedColor =蓝;
    }    私人静态字符串[] = _colorList {黄色，棕，白，蓝，橙色，红色，绿色，紫};
    公共字符串[] ColorList
    {
        {返回_colorList; }
    }    私人字符串_selectedColor;
    公共字符串SelectedColor
    {
        {返回_selectedColor; }
        组
        {
            _selectedColor =价值;
            RaisePropertyChanged（（）=＆GT; SelectedColor）;
        }
    }
 

解决方案

呼叫 MvxAppCompatSetupHelper.FillTargetFactories 从 Setup.cs 的 FillTargetFactories（）

I just updated all of my Mvvmcross libraries to version 4.0.0-beta3 and it looks like it may have broken the binding of the MVXSpinner.

I get the following message in the output:

MvxBind:Warning: 5.40 Failed to create target binding for binding SelectedItem for SelectedColor

Here is the xml:

<MvxSpinner
               android:layout_width="match_parent"
               android:layout_height="wrap_content"
               android:id="@+id/colorSpinner"
               android:spinnerMode="dropdown"
               android:layout_below="@id/maintoolbar"
               local:MvxBind="ItemsSource ColorList; SelectedItem SelectedColor" />

Here is the ViewModel:

    public HomeViewModel(IKrizzmaService service, IMvxMessenger messenger)
        :base(service, messenger)
    {
        SelectedColor = "Blue";
    }

    private static string[] _colorList = { "Yellow", "Brown", "White", "Blue", "Orange", "Red", "Green", "Purple" };
    public string[] ColorList
    {
        get { return _colorList; }
    }

    private string _selectedColor;
    public string SelectedColor
    {
        get { return _selectedColor; }
        set
        {
            _selectedColor = value;
            RaisePropertyChanged(() => SelectedColor);
        }
    }

解决方案

Call MvxAppCompatSetupHelper.FillTargetFactories from your Setup.cs's FillTargetFactories()

这篇关于问题升级到V4.0.0 Mvvmcross-β3后结合MVXSpinner的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！