WPF DataTrigger 改变控件颜色

之前这篇博文，用 True 和 False两种情况来进行判断，其实也可以用 int 类型进行多个条件的判断。

XAML：

ViewModel：

public class TestVM : ViewModelBase
{
    private int _PresentColor = 0;
    public int PresentColor
    {
        get { return _PresentColor; }
        set { _PresentColor = value; RaisePropertyChanged(nameof(PresentColor)); }
    }

    private RelayCommand _changeColorCommand;
    public RelayCommand ChangeColorCommand
    {
        get {
            if (_changeColorCommand == null)
                _changeColorCommand = new RelayCommand(ChangeColor);
            return _changeColorCommand; }
        set { _changeColorCommand = value; RaisePropertyChanged(nameof(ChangeColorCommand)); }
    }


    private void ChangeColor()
    {
        if (PresentColor < 2)
            PresentColor++;
        else
            PresentColor = 0;
    }
}

原文：https://www.cnblogs.com/huvjie/p/15265426.html