protected override async Task <string> update()
{
if (hasRretrieveAccount)
{
//获取账套信息
string data = await((HsApp)Application.Current).WSUtil.Login(this.ucUserName.ControlValue, this.ucPassword.ControlValue, this.ucDb.ControlValue);
//登录成功后将用户信息存入Application中，以便全局调用
XElement xReturnData = XElement.Parse(data);
((HsApp)Application.Current).LoginData = new LoginData(
xReturnData.GetFirstElementValue("ProgressId"),
xReturnData.GetFirstElementValue("UserBh"),
xReturnData.GetFirstElementValue("UserName"),
xReturnData.GetFirstElementValue("DeptBh"),
xReturnData.GetFirstElementValue("DeptMc"),
xReturnData.GetFirstElementValue("RoleBhs"),
xReturnData.GetFirstElementValue("RoleMcs"));
XElement xMenus = xReturnData.Element("Menus");
//将登录信息存入本地
try
{
XElement xLastLogin = new XElement("Data");
xLastLogin.Add(new XElement("UserName", this.ucUserName.ControlValue));
xLastLogin.Add(new XElement("Password", this.ucIsSaved.Checked ? this.ucPassword.ControlValue : ""));
xLastLogin.Add(new XElement("Account", this.ucDb.ControlValue));
xLastLogin.Add(new XElement("IsSaved", this.ucIsSaved.Checked));
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
//await HsLocalStorageHelper.WriteAllText(LASTLOGINFILENAME, xLastLogin.ToString());
await pe.WriteTextFile(LASTLOGINFILENAME, xLastLogin.ToString());
}
catch (Exception ex)
{
this.ShowError(ex.Message);
}
this.LoginSuccess?.Invoke(this, new HsEventArgs <XElement> {
Data = xMenus
});
return(null);
}
else
{
string data = await((HsApp)Application.Current).WSUtil.GetDbs();
this.ucDb.Datas = data;
this.hasRretrieveAccount = true;
try
{
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
//读入上次登录配置信息
//string lastData = await HsLocalStorageHelper.ReadAllText(LASTLOGINFILENAME, "");
string lastData = await pe.ReadTextFile(LASTLOGINFILENAME);
if (!string.IsNullOrWhiteSpace(lastData))
{
XElement xLastLogin = XElement.Parse(lastData);
this.ucUserName.ControlValue = xLastLogin.GetFirstElementValue("UserName");
this.ucPassword.ControlValue = xLastLogin.GetFirstElementValue("Password");
this.ucDb.ControlValue = xLastLogin.GetFirstElementValue("Account");
this.ucIsSaved.Checked = bool.Parse(xLastLogin.GetFirstElementValue("IsSaved", false.ToString()));
}
}
catch (Exception e)
{
throw e;
}
return(null);
}
}
public override async Task GetItems()
{
try
{
this.isRetrieveing = true;
if (string.IsNullOrWhiteSpace(Djlx))
{
throw new HsException($"属性Djlx或未定义");
}
if (string.IsNullOrWhiteSpace(DjId))
{
return;
}
//
this.Reset();
IPlatformExtension pe = DependencyService.Get <IPlatformExtension>(DependencyFetchTarget.GlobalInstance);
string[] cachePath = new string[] { "Cache", "Images" };
//获取图像哈希集合
List <HsLabelValue> items = await GetWSUtil().GetSysImageHashDatas(GetLoginData().ProgressId, Djlx, DjId);
//逐幅获取图像，如果存在本地缓存则使用本地图片。
foreach (HsLabelValue item in items)
{
//图片的Hash值
string hashData = item.GetValueByLabel("HashData");
string imageDataString = await pe.ReadTextFile(hashData, cachePath);
//本地缓存中不存在文件，则从网络中获取，并写入本地。
if (string.IsNullOrWhiteSpace(imageDataString))
{
string result = await GetWSUtil().GetSysImageById(GetLoginData().ProgressId, item.GetValueByLabel("ImageId"));
XElement xData = XElement.Parse(result);
imageDataString = xData.GetFirstElementValue("Data");
await pe.WriteTextFile(hashData, imageDataString, cachePath);
}
datas.Add(new HsImage(imageDataString)
{
HashData = hashData
});
}
hasRrtrieve = true;
}
catch (Exception e)
{
throw e;
}
finally
{
this.isRetrieveing = false;
}
}