Is it possible to check a if statement before download pdf?

layla0323

Hi,
I create a pdf button:
"buttons": [
{
text:'<i class="fa fa-file-pdf-o"> PDF</i>',
titleAttr: 'PDF',
extend: 'pdfHtml5',
download: 'download',
filename: 'Individual'
}
]

I just want to know that how to check the "iTotalDisplayRecords" first, then download.
For example, if the iTotalDisplayRecords is above 500, when you click on the PDF button it will pop up a error alert. If not, then download.
Thanks!

allan

You would need to use a custom button that would performt he logic check. If it passes it would call the PDF export button's action function ($.fn.dataTable.buttons.pdfHtml5.action - passing in the same arguments as to your custom button).

Allan