this.xtraTabControl1.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder; this.xtraTabControl1.BorderStylePage = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder; this.xtraTabControl1.LookAndFeel.Style = DevExpress.LookAndFeel.LookAndFeelStyle.Flat; this.xtraTabControl1.LookAndFeel.UseDefaultLookAndFeel = false;
https://www.devexpress.com/Support/Center/Question/Details/Q333953/how-to-hide-border-of-xtratabcontrol
How to hide border of XtraTabControl
原文：https://www.cnblogs.com/bycnboy/p/9040386.html