public static bool DownloadContractFile(int contractId, ContractIndex docIndex, int?fileId, Grid layoutRoot)
{
int docid = (int)docIndex;
if (docid == -1)
{
return(false);
}
layoutRoot.Children.Add(busy);
Task <bool> .Factory.StartNew(delegate
{
FileDataObject t = DataManagement.RetrieveContractFile(contractId, docid, fileId);
if (t == null)
{
return(false);
}
OpenFileHandler.OpenFileFromByte(t.FileContent, t.FileName);
t = null;
GC.Collect();
return(true);
}).ContinueWith(Pre =>
{
layoutRoot.Children.Remove(busy);
if (!Pre.Result)
{
ErrorHandler.ShowErrorMessage(ErrorHandler.ErrorMessages["NoFile"]);
}
if (TransactionFinished != null)
{
TransactionFinished();
}
}, TaskScheduler.FromCurrentSynchronizationContext());
return(true);
}
public static bool DeleteContractFile(int contractId, ContractIndex docIndex, int fileId, Grid layoutRoot)
{
if (!UserData.CurrentAccessRight.ContractDelete)
{
ErrorHandler.ShowErrorMessage("امکان انجام این عملیات وجود ندارد");
return(false);
}
int docid = (int)(docIndex);
if (docid == -1)
{
return(false);
}
if (ErrorHandler.PromptUserForPermision(ErrorHandler.ErrorMessages["Prompt"]) == MessageBoxResult.No)
{
return(false);
}
layoutRoot.Children.Add(busy);
Task.Factory.StartNew(delegate
{
DataManagement.DeleteContractFile(fileId);
}).ContinueWith(delegate
{
layoutRoot.Children.Remove(busy);
if (TransactionFinished != null)
{
TransactionFinished();
}
}, TaskScheduler.FromCurrentSynchronizationContext());
return(true);
}
public static bool UploadContractFile(int contractId, ContractIndex docIndex, string version, Grid layoutRoot)
{
ContractFile f = new ContractFile();
f.Version = version;
f.AttachedDate = DateTime.Now;
f.FileGuid = Guid.NewGuid();
string fileLocation = OpenFileHandler.OpenFileToUpload();
if (fileLocation == null)
{
return(false);
}
layoutRoot.Children.Add(busy);
Task <bool> .Factory.StartNew(delegate
{
f.FileContent = OpenFileHandler.GetFileFromLocation(fileLocation);
f.Name = System.IO.Path.GetFileName(fileLocation);
if (DataManagement.AddContractFile(contractId, docIndex, f) != -1)
{
f = null;
GC.Collect();
return(true);
}
else
{
return(false);
}
}).ContinueWith(prev =>
{
layoutRoot.Children.Remove(busy);
bool result = prev.Result;
if (result)
{
ErrorHandler.NotifyUser("فایل با موفقیت ثبت شد.");
if (TransactionFinished != null)
{
TransactionFinished();
}
}
else
{
ErrorHandler.ShowErrorMessage("ثبت فایل امکان پذیر نبود لطفا دوباره سعی کنید.");
}
}, TaskScheduler.FromCurrentSynchronizationContext());
return(true);
}
