public async Task CheckZoneCode()
{
if (CreateMode)
{
CodeWarningText = "";
if ((LocationCode != "") && (Code != ""))
{
int exist = await NAV.GetZoneCount(LocationCode, Code, false, ACD.Default).ConfigureAwait(true);
if (exist > 0)
{
CodeWarningText = AppResources.NewZonePage_CodeAlreadyExist;
}
}
}
}