C# Winform界面编程时拖放的按钮很不美观,如果要贴一个透明的png图片,需要做一些属性设置,this代表此Button。
this.BackColor = System.Drawing.Color.Transparent; //this.BackgroundImage = global::WindowsFormsApplication1.Properties.Resources.back;
this.BackgroundImage = System.Drawing.Image.FromFile("../../image/spalish.jpg"); this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.None; this.FlatAppearance.BorderSize = 0; this.FlatAppearance.MouseDownBackColor = System.Drawing.Color.Transparent; this.FlatAppearance.MouseOverBackColor = System.Drawing.Color.Transparent; this.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
这样设置后,按钮按下去时,还是去出现黑线框,这个黑线框通过属性设置时无法去掉的,需要自定义按钮,然后重绘。
这个黑线框式聚焦框,有系统绘制。可以按如下方式自定义按钮后就可顺利去掉此黑线框。
//自定义了一个Button。点击Button时不会出现黑色边框 public class MyButton : Button { public MyButton() { }
protected override bool ShowFocusCues { get { return false; } }
}