FiveTech Software tech support forums

by **Patricio Avalos Aguirre** » Tue Jul 13, 2021 2:13 am

Estimados

como puedo saber si existe el archivo antes de lanzar el PDF

he tratado de buscar en la web pero no lo he podido lograr

Code: Select all Expand view: BUTTON ID 'btnprint' LABEL ' Print' ACTION 'PrintPdf()' GRID 2 ICON '<i class="fas fa-home"></i>' CLASS 'btn-primary btnticket' OF o

Code: Select all Expand view: <script> function PrintPdf() { if existarchivo( 'cFileName.Pdf' ) window.open('cFileName.Pdf' ); }

by **Otto** » Tue Jul 13, 2021 11:26 pm

Hello,
Please search for: javascript check file exists on server
I found: How do I check if file exists in jQuery or pure JavaScript?
https://stackoverflow.com/questions/364 ... javascript
Best regards,
Otto

by **Otto** » Tue Jul 13, 2021 11:53 pm

Code: Select all Expand view: function main TEMPLATE <!DOCTYPE html> <html> <head> </head> <body> <h1>Test open PDF</h1> <button onclick="myFunction()">Open PDF</button> <script> function myFunction() { var url = "https://winhotel.space/modharbour_samples/test.pdf"; if ( fileExists( url ) ){ var myWindow = window.open("https://winhotel.space/modharbour_samples/test.pdf", "", "width=400,height=400"); }else{ alert("file not found"); } } function fileExists(url) { if(url){ var req = new XMLHttpRequest(); req.open('GET', url, false); req.send(); return req.status==200; } else { return false; } } </script> </body> </html> ENDTEXT return

by **Patricio Avalos Aguirre** » Wed Jul 14, 2021 2:57 am

Gracias Otto

FUNCIONO!!!

Verificar si existe el archivo y lanzar