c#设置button透明

1、使用代码进行设置：

this.button_welcom_login.FlatStyle = System.Windows.Forms.FlatStyle.Flat;            this.button_welcom_login.FlatAppearance.MouseDownBackColor = System.Drawing.Color.Transparent;            this.button_welcom_login.FlatAppearance.MouseOverBackColor = System.Drawing.Color.Transparent;//设置透明

 

2、在属性栏设置，如下图：