protected void DoAction(BaseHandler innerCallback, string action, ParameterList qry = null, ParameterList data = null)
{
this.innerCallback = innerCallback;
StringBuilder sb = new StringBuilder(connection.BaseUrl);
sb.Append(action);
sb.Append("?");
if (qry != null) sb.Append(qry.BuildQueryString());
string url = sb.ToString();
this.url = url;
if (data != null)
client.UploadStringAsync(new Uri(url), data.BuildQueryString());
else
client.DownloadStringAsync(new Uri(url));
}