WPF改变窗口尺寸，修改控件尺寸

window中添加 SizeChanged事件

然后：

            grid1.Width = this.ActualWidth;
            grid1.Height = this.ActualHeight;
            var w = this.ActualWidth - 15;
            var h = this.ActualHeight - 38;
            textbox1.Width = w < 0 ? 0 : w;
            textbox1.Height = h < 0 ? 0 : h;