private void BtnXoa_Click(object sender, EventArgs e) { int idre = Convert.ToInt32(this.dataResource.SelectedRows[0].Cells[0].Value.ToString()); if (this.dataResource.SelectedRows.Count <= 0) { return; } Resource user = ResourceController.GetResource(idre); ResourceController.DeleteResource(user); BindingSource source = new BindingSource(); source.DataSource = ResourceController.getListResource(); this.dataResource.DataSource = source; }