private void RemoveButtonItem_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (NsiBindingSource.Current != null)
{
NsiBindingSource.RemoveCurrent();
}
}
private void AddButtonItem_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
NsiBindingSource.AddNew();
}