Excel Download File Contains Only Heading Row #9935

4 Answer(s)

• 

  0

  zony created 4 years ago

  Support Team

  Hi schlarmanp, Can you provide relevant code snippets for export?

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• 

  0

  schlarmanp created 4 years ago

  Here is the API-side method:

  		public async Task<FileDto> GetJournalVoucherTransactionsToExcel(GetAllJournalVoucherTransactionsForExcelInput input)
           {
  			
  			var filteredJournalVoucherTransactions = _journalVoucherTransactionRepository.GetAll()
  						.WhereIf(!string.IsNullOrWhiteSpace(input.Filter), e => false  || e.CostpointProjectCode.Contains(input.Filter) || e.CostpointAccountNumber.Contains(input.Filter) || e.AccountAbbreviation.Contains(input.Filter) || e.CostpointOrganizationCode.Contains(input.Filter) || e.TransactionDescription.Contains(input.Filter) || e.TransactionNotes.Contains(input.Filter) || e.CostpointEmployeeNumber.Contains(input.Filter) || e.ProblemCodes.Contains(input.Filter) || e.TransactionState.Contains(input.Filter))
  						.WhereIf(input.MinLineNumberFilter != null, e => e.LineNumber >= input.MinLineNumberFilter)
  						.WhereIf(input.MaxLineNumberFilter != null, e => e.LineNumber <= input.MaxLineNumberFilter)
  						.WhereIf(!string.IsNullOrWhiteSpace(input.CostpointProjectCodeFilter),  e => e.CostpointProjectCode.ToLower() == input.CostpointProjectCodeFilter.ToLower().Trim())
  						.WhereIf(!string.IsNullOrWhiteSpace(input.CostpointAccountNumberFilter),  e => e.CostpointAccountNumber.ToLower() == input.CostpointAccountNumberFilter.ToLower().Trim())
  						.WhereIf(!string.IsNullOrWhiteSpace(input.AccountAbbreviationFilter),  e => e.AccountAbbreviation.ToLower() == input.AccountAbbreviationFilter.ToLower().Trim())
  						.WhereIf(!string.IsNullOrWhiteSpace(input.CostpointOrganizationCodeFilter),  e => e.CostpointOrganizationCode.ToLower() == input.CostpointOrganizationCodeFilter.ToLower().Trim())
  						.WhereIf(input.MinTransactionAmountUSDFilter != null, e => e.TransactionAmountUSD >= input.MinTransactionAmountUSDFilter)
  						.WhereIf(input.MaxTransactionAmountUSDFilter != null, e => e.TransactionAmountUSD <= input.MaxTransactionAmountUSDFilter)
  						.WhereIf(!string.IsNullOrWhiteSpace(input.TransactionDescriptionFilter),  e => e.TransactionDescription.ToLower() == input.TransactionDescriptionFilter.ToLower().Trim())
  						.WhereIf(!string.IsNullOrWhiteSpace(input.TransactionNotesFilter),  e => e.TransactionNotes.ToLower() == input.TransactionNotesFilter.ToLower().Trim())
  						.WhereIf(!string.IsNullOrWhiteSpace(input.CostpointEmployeeNumberFilter),  e => e.CostpointEmployeeNumber.ToLower() == input.CostpointEmployeeNumberFilter.ToLower().Trim())
  						.WhereIf(input.MinHoursFilter != null, e => e.Hours >= input.MinHoursFilter)
  						.WhereIf(input.MaxHoursFilter != null, e => e.Hours <= input.MaxHoursFilter)
  						.WhereIf(!string.IsNullOrWhiteSpace(input.ProblemCodesFilter),  e => e.ProblemCodes.ToLower() == input.ProblemCodesFilter.ToLower().Trim())
  						.WhereIf(input.MinJournalVoucherIDFilter != null, e => e.JournalVoucherID >= input.MinJournalVoucherIDFilter)
  						.WhereIf(input.MaxJournalVoucherIDFilter != null, e => e.JournalVoucherID <= input.MaxJournalVoucherIDFilter)
  						.WhereIf(!string.IsNullOrWhiteSpace(input.TransactionStateFilter),  e => e.TransactionState.ToLower() == input.TransactionStateFilter.ToLower().Trim());
  
  			var query = (from o in filteredJournalVoucherTransactions
                           select new GetJournalVoucherTransactionForViewDto() { 
  							JournalVoucherTransaction = new JournalVoucherTransactionDto
  							{
                                  LineNumber = o.LineNumber,
                                  CostpointProjectCode = o.CostpointProjectCode,
                                  CostpointAccountNumber = o.CostpointAccountNumber,
                                  AccountAbbreviation = o.AccountAbbreviation,
                                  CostpointOrganizationCode = o.CostpointOrganizationCode,
                                  TransactionAmountUSD = o.TransactionAmountUSD,
                                  TransactionDescription = o.TransactionDescription,
                                  TransactionNotes = o.TransactionNotes,
                                  CostpointEmployeeNumber = o.CostpointEmployeeNumber,
                                  Hours = o.Hours,
                                  ProblemCodes = o.ProblemCodes,
                                  JournalVoucherID = o.JournalVoucherID,
                                  TransactionState = o.TransactionState,
                                  Id = o.Id
  							}
  						 });
  
  
              var journalVoucherTransactionListDtos = await query.ToListAsync();
  
              return _journalVoucherTransactionsExcelExporter.ExportToFile(journalVoucherTransactionListDtos);
           }
  

  Here is the angular call:

      async exportToExcelTransactions() {
  
          //inform user
          this.notify.info(this.l('Excel file generation initiated...'));
  
          //changed this to wait for result instead of using subscribe - 
          //will hopefully solve problem of downloaded files sometimes being empty.
          var resultFile = await this._journalVoucherTransactionsServiceProxy.getJournalVoucherTransactionsToExcel(
              this.filterText,
              this.maxLineNumberFilter == null ? this.maxLineNumberFilterEmpty: this.maxLineNumberFilter,
              this.minLineNumberFilter == null ? this.minLineNumberFilterEmpty: this.minLineNumberFilter,
              this.costpointProjectCodeFilter,
              this.costpointAccountNumberFilter,
              this.accountAbbreviationFilter,
              this.costpointOrganizationCodeFilter,
              this.maxTransactionAmountUSDFilter == null ? this.maxTransactionAmountUSDFilterEmpty: this.maxTransactionAmountUSDFilter,
              this.minTransactionAmountUSDFilter == null ? this.minTransactionAmountUSDFilterEmpty: this.minTransactionAmountUSDFilter,
              this.transactionDescriptionFilter,
              this.transactionNotesFilter,
              this.costpointEmployeeNumberFilter,
              this.maxHoursFilter == null ? this.maxHoursFilterEmpty: this.maxHoursFilter,
              this.minHoursFilter == null ? this.minHoursFilterEmpty: this.minHoursFilter,
              this.problemCodesFilter,
              this.journalVoucherIdFilter == null ? this.maxJournalVoucherIDFilterEmpty: this.journalVoucherIdFilter,
              this.journalVoucherIdFilter == null ? this.minJournalVoucherIDFilterEmpty: this.journalVoucherIdFilter,
              this.transactionStateFilter
          ).toPromise();
  
          //wait a couple secs before downloading
          await this.delay(4000); //4 seconds
  
          //inform user
          this.notify.success(this.l('Excel file download starting...'));
  
          //download Excel file
          this._fileDownloadService.downloadTempFile(resultFile);
  
          //return promise to notify caller
          return new Promise(resolve => {
              resolve(resultFile);
            });
  
      }
  

  And this is the HTML:

  																<button 
  																	(click)="exportToExcelTransactions()" 
  																	class="btn btn-outline-success">
  																	<i class="fa fa-file-excel"></i> {{l("ExportToExcel")}}
  																</button>
  

  If the user requests hard refresh of page in Chrome (CTRL + F5), the file downloads completely, otherwise in normal usage, many users are consistently only receiving the header row in the downloaded spreadsheet.

  Thoughts?

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• 

  0

  schlarmanp created 4 years ago

  HTML:

  <button (click)="exportToExcelTransactions()" class="btn btn-outline-success"> <i class="fa fa-file-excel"></i> {{l("ExportToExcel")}} </button>

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• 

  0

  ismcagdas created 4 years ago

  Support Team

  Hi,

  We had problems with EPPlus and moved to NPOI library in this PR https://github.com/aspnetzero/aspnet-zero-core/pull/3057/files. Could you try this on your version as well ?

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