public static void AddClient(UDPHost client)
{
XDocument doc = XDocument.Load("Application.config");
var clientsElement = doc.Descendants("clients");
//如果没有，说明是第一次添加Clients
if (clientsElement.Count() == 0)
{
var element = new XElement("clients");
doc.Add(element);
}
//重新读取
clientsElement = doc.Descendants("clients");
var clients = clientsElement.Descendants("client");
var clientElement = clients.SingleOrDefault(c => c.Attribute("ip").Value == client.IP);
if (clientElement == null)
{
clientElement = new XElement("client");
clientElement.SetAttributeValue("id", client.Id);
clientElement.SetAttributeValue("ip", client.IP);
clientElement.SetAttributeValue("port", client.Port);
clientsElement.Single().Add(clientElement);
}
doc.Save("Application.config");
}
public static void UpdateClient(UDPHost client)
{
XDocument doc = XDocument.Load("Application.config");
var clients = doc.Descendants("clients").Descendants("client");
var element = clients.SingleOrDefault(c => c.Attribute("id").Value == client.Id.ToString());
if (element == null)
{
return;
}
element.SetAttributeValue("ip", client.IP);
element.SetAttributeValue("port", client.Port);
doc.Save("Application.config");
}
public static ObservableCollection <UDPHost> GetClients()
{
XDocument doc = XDocument.Load("Application.config");
var clientsElement = doc.Descendants("clients");
if (clientsElement.Count() == 0)
{
return(null);
}
//重新读取
clientsElement = doc.Descendants("clients");
var clients = clientsElement.Descendants("client");
ObservableCollection <UDPHost> list = new ObservableCollection <UDPHost>();
foreach (var item in clients)
{
UDPHost client = new UDPHost();
client.Id = int.Parse(item.Attribute("id").Value);
client.IP = item.Attribute("ip").Value;
client.Port = int.Parse(item.Attribute("port").Value);
list.Add(client);
}
return(list);
}