public void Validrefreshchatnickarray(string message, int Chatnumber)
{
string[] chatnickarray = jsonHelp.getRefreshchatnickarray(message);
if (this.Chatnumber == Chatnumber)
{
App.Current.Dispatcher.InvokeAsync(() =>
{
Friendlist.Clear();
for (int i = 0; i < chatnickarray.Length; i++)
{
Friendlist.Add(new Frienddata(chatnickarray[i]));
}
});
}
}