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Finance | Project Operations, Human Resources, ...
Answered

Download file stored in SQL Table

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Posted on by 190

Hi

I am using file upload control to store the files in SQL Tables.


public void OnUploadCompleted()
        {
            System.IO.Stream                 stream;
            FileUploadTemporaryStorageResult result = this.getFileUploadResult() as FileUploadTemporaryStorageResult;
            container                        con;
            ProjectAttachments   HcmAbsenceRequestAttachmentTmpInsert;
           
            super();
            if (result && result.getUploadStatus())
            {
                fileUrl = result.getDownloadUrl();
                stream = result.openResult();
                con = Binary::constructFromMemoryStream(stream).getContainer();

                HcmAbsenceRequestAttachmentTmpInsert.clear();
                HcmAbsenceRequestAttachmentTmpInsert.AttachmentName = result.getFileName();
                HcmAbsenceRequestAttachmentTmpInsert.AttachmentContent =  con;
                HcmAbsenceRequestAttachmentTmpInsert.ProjId = projid;
                HcmAbsenceRequestAttachmentTmpInsert.Author = HcmWorker::userId2Worker(curUserId());
                HcmAbsenceRequestAttachmentTmpInsert.Created = DateTimeUtil::getSystemDateTime();
                //HcmAbsenceRequestAttachmentTmpInsert.Path = fileUrl;
                HcmAbsenceRequestAttachmentTmpInsert.ContentType = result.getFileContentType();
                HcmAbsenceRequestAttachmentTmpInsert.insert();

                element.close();
            }
        }

I am displaying all the files into the grid. When I click download on particular row, the file should be downloaded.

Options already tried

BinData b = new BinData();
b.setData(HcmAbsenceRequestAttachmentTmpInsert.AttachmentContent);
b.saveFile(@"C:\Temp\"+DocuRef1_.AttachmentName); But this option will not let the user to select the file directory

Thanks

Pradeep

I have the same question (0)
  • Verified answer
    Martin Dráb Profile Picture
    237,904 Most Valuable Professional on at

    Use File::sendFindToUser(). Like this:

    Binary binary = Binary::constructFromContainer(table.AttachmentContent);
    System.Io.Stream stream = binary.getMemoryStream();
    File::sendFindToUser(stream, table.AttachmentName);

    By the way, you should avoid storing large files in the relational database. Database storage is limited and (relatively) expensive.

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