/// <summary>
/// 根据关键字获取公交站点
/// </summary>
/// <param name="key">根据关键字查询公交站点</param>
/// <param name="callback">结果处理函数</param>
/// <param name="spliter">站点分隔符</param>
/// <param name="maxNum">最大结果数</param>
void GetBusStopName(string key, UploadStringCompletedEventHandler callback, string spliter = "$", int maxNum = 8)
{
key = CommFun.Escape(key.Trim());
string svrUrl = ServerAddress + "?svcType=SDS&_method=GetBusStop";
string data = "_method=GetBusStop&key=" + key + "&spliter=" + spliter + "&encode=0&num=" + maxNum;
WebClient cli = new WebClient();
cli.Encoding = Encoding.UTF8;
cli.Headers[HttpRequestHeader.ContentType] = "type=text/xml;charset=utf-8";
cli.Headers[HttpRequestHeader.ContentEncoding] = "utf-8";
cli.UploadStringCompleted += callback;
cli.UploadStringAsync(new Uri(svrUrl), data);
}
/// <summary>
/// 获取公交换乘方案
/// </summary>
/// <param name="startStop">起始站点</param>
/// <param name="endStop">结束站点</param>
/// <param name="callback">结果处理函数</param>
/// <param name="returnXml">是否以XML形式返回结果</param>
void GetBusChangeRlt(string startStop, string endStop, UploadStringCompletedEventHandler callback, bool returnXml = false)
{
startStop = CommFun.Escape(startStop.Trim());
endStop = CommFun.Escape(endStop.Trim());
String returnType = returnXml ? "0" : "1";
string svrUrl = ServerAddress + "?svcType=SDS&_method=GetBusWay";
string data = "_method=GetBusWay&staPos=" + startStop + "&endPos=" + endStop + "&encode=0&outputType=" + returnType;
WebClient cli = new WebClient();
cli.Encoding = Encoding.UTF8;
cli.Headers[HttpRequestHeader.ContentType] = "type=text/xml;charset=utf-8";
cli.Headers[HttpRequestHeader.ContentEncoding] = "utf-8";
cli.UploadStringCompleted += callback;
cli.UploadStringAsync(new Uri(svrUrl), data);
}