WPF 触发器例子

WPF的触发器很强大，这里简单附上触发器的一个小例子，分别用XMAL和CS代码来实现一个功能，鼠标悬停在button上时改变字体颜色

1.XMAL代码如下：

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
   
       
           
               
           
       
   

Cs代码如下：
        public MainWindow()
        {
            InitializeComponent();
            Button btn = new Button() { Width =100,Height=50,Content="overme"};

            //实例style,参数带上控件类型
            Style m_style = new Style( typeof(Button));

            //实例trigger，并加上触发的property和value
            Trigger trigger = new Trigger();
            trigger.Property = IsMouseOverProperty;
            trigger.Value = true;

            //当满足trigger设定的条件时，要应用的属性值
            trigger.Setters.Add(new Setter(ForegroundProperty, Brushes.Red));

            m_style.Triggers.Add(trigger);
            btn.Style = m_style;
            grid.Children.Add(btn); //grid就是外面的Grid
        }
   

转载于:https://www.cnblogs.com/kevinWu7/p/10163553.html