devexpress gridview RepositoryItem
DevExpress.XtraEditors.Repository.RepositoryItemButtonEdit edit = new DevExpress.XtraEditors.Repository.RepositoryItemButtonEdit();
该列设置
col.ShowButtonMode = DevExpress.XtraGrid.Views.Base.ShowButtonModeEnum.ShowAlways;//即可一直显示,选择其他也有其他功能