ISSUE
When accessing a Nintex form, the following error occurs:Unable to get property 'value' of undefined or null reference FormsPart.aspx
ERROR CODE
RESOLUTION
In the FormPart.aspx JavaScript to get the value from the single line textbox control, locate the following line of code:NWF$(".option_crId_control .nf-filler-control-inner")[0].firstChild.dataAnd update it as follows:
NWF$(".option_crId_control .nf-hidden-associated-control").val()