WPF后台代码实现TextBlock滚动条

Posted 2022-07-17 carmen-019

 

方法一：

常规的WPF操作：

        <ScrollViewer Width="300" Height="150" BorderBrush="Brown" BorderThickness="2" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
            <TextBlock x:Name="_txtb" Background="HotPink" TextWrapping="Wrap" Foreground="Wheat"/>
        </ScrollViewer>

后台代码：

_txtb.Text = "1\\r\\n7\\r\\n6\\r\\n5dsaadsfjhduhtndsadjdhsajhscadsadsadas哈哈哈你\\r\\n4\\r\\n3\\r\\n2\\r\\n1\\r\\n0\\r\\n1\\r\\n2";

 

方法二：

后台直接写：       

        public MainWindow()
　　　　　
            InitializeComponent();

            var outer = new ScrollViewer();
            outer.Background = Brushes.Gray;
            outer.Width = 300;
            outer.Height = 100;

            var inner = new TextBlock();
            inner.Background = Brushes.Orange;
            inner.Foreground = Brushes.White;
            inner.Width = 200;

            outer.Content = inner;
            outer.MaxHeight = 80;

            inner.Text = "1\\r\\n7\\r\\n6\\r\\n5dsaadsfjhduhtndsadjdhsajhscadsadsadas哈哈哈你\\r\\n4\\r\\n3\\r\\n2\\r\\n1\\r\\n0\\r\\n1\\r\\n2";

            // 此行用于文本内容根据设定宽度，当一行过长时自动换行
            // inner.TextWrapping = TextWrapping.Wrap;

            outer.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;
            outer.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;

            // 此句慎用呀，此处主要为了在界面上显示出结果
            this.Content = outer;