C# DevExpress - WinForm GridControl Button

private RepositoryItemButtonEdit buttonEditUp = new RepositoryItemButtonEdit()
{
  TextEditStyle = DevExpress.XtraEditors.Controls.TextEditStyles.HideTextEditor
};
private void initControl() 
{
  buttonEditUp.Buttons[0].Kind = DevExpress.XtraEditors.Controls.ButtonPredefines.Glyph;
  buttonEditUp.Buttons[0].Caption = "Upload";
  buttonEditUp.ButtonsStyle = DevExpress.XtraEditors.Controls.BorderStyles.HotFlat;
}