[RESOLVED] Form Validation

Forms SharePoint 2019
21

Dear @DryChips,
It seems there is no value - either you're using the wrong field name or the field's value is empty. I don't know what code you're using and whether the value is required or not, but if it's not, you can always first check if there's a value at all:

if (value && (value.length < 11 || value.length > 20)){
22

Using this code:

Field name is correct.

//This code will validate the New Phone Number field - [Personal Details]
fd.field("Emergency_Phone1").validators.push({
    name:"",
    error:"",
    validate: function (value){
           if (fd.field('Question_2').value.includes('Emergency Contact Details')>=0){
                  if (value.length < 11 || value.length > 20){
                  this.error = "Please enter a minimum of 11 digits";
                  return false;
                  }
                  return true;
           }
           return true;
    }

});

23

Dear @DryChips,
I've shown you the code above, you can just add it here:

//This code will validate the New Phone Number field - [Personal Details]
fd.field("Emergency_Phone1").validators.push({
    name:"",
    error:"",
    validate: function (value){
           if (fd.field('Question_2').value.includes('Emergency Contact Details')>=0){
                  if (value && (value.length < 11 || value.length > 20)){
                  this.error = "Please enter a minimum of 11 digits";
                  return false;
                  }
                  return true;
           }
           return true;
    }
});