/// <summary>
/// 删除一条信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Btn_Delete_Click(object sender, EventArgs e)
{
XmlDocument document = new XmlDocument();
document.Load("BookXML.xml");
//选择一个根元素
XmlElement element = document.DocumentElement;
string strPath = string.Format("/bookstore/book[@ISBN=\"{0}\"]", dataGridView1.CurrentRow.Cells[1].Value.ToString());
XmlElement selectXe = (XmlElement)element.SelectSingleNode(strPath); //selectSingleNode 根据XPath表达式,获得符合条件的第一个节点.
selectXe.ParentNode.RemoveChild(selectXe);
//Linq 删除数据
LinqXML.LinqXMLDeleteFunc(dataGridView1);
MessageBox.Show("删除成功！");
//Linq 删除所有数据
LinqXML.LinqXMLDeleteAllFunc();
MessageBox.Show("删除成功！");
}
