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Disable Submit Button Based On Field Value


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I have a submission form with 12 numeric fields where the user is required to enter as positive amounts. I would like to disable the submit button when this condition exists. In some cases the 12 fields may not have data entered, so I need to check either if positive or if blank then allow submit. Can this be achieved via javascript? 

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Text field IDs are

EditRecord[fieldSource]
or
InserRecord[fieldSource]

Submit button IDs are

Submit

something like

var field1 = document.getElementById('EditRecord[fieldSource]');
var submitBtn = document.getElementById('Submit');

if (field1.value != Null){
 if (field1.value > 0) {
  submitBtn.style.display = 'block';
 }
}

If you have to test multiple fields add layers of "if"s

(Or use a loop... that would the right way to do it, but IDK js loops)

 

Hope this helps

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Hello ccarls3,

 

I have written the following script. It does not disable the "Submit" button, but when a user clicks "Submit", the script checks, if any negative number is entered. If yes, the error message is displayed and the record is not added.

<script language="JavaScript">
function check_numbers()
{
var disabled = false;
if (parseFloat(document.getElementById("InsertRecordfield1").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield2").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield3").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield4").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield5").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield6").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield7").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield8").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield9").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield10").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield11").value)<0) disabled = true;
if (parseFloat(document.getElementById("InsertRecordfield12").value)<0) disabled = true;

if (disabled)
{
alert("Negative values are not allowed");
return false;
}
}
document.getElementById("caspioform").onsubmit=check_numbers;
</script>
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  • 2 years later...

How do i write the code if the field is a name that I don't want submitted?  Where do I put the script..(im not good at JS).  I tried something like this

if (parseFloat(document.getElementById("InsertRecordMyTestField").value)="BadName") disabled = true;
do I use quotes for the text i want to restrict or apostrophes?
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5 hours ago, alexm72 said:

How do i write the code if the field is a name that I don't want submitted?  Where do I put the script..(im not good at JS).  I tried something like this


if (parseFloat(document.getElementById("InsertRecordMyTestField").value)="BadName") disabled = true;

do I use quotes for the text i want to restrict or apostrophes?

Hi Alexm72,

You should put Javascript code into the Footer element of Datapage. Please make sure that you disable HTML editor before inserting the code.

I have created following JS for your particular case. Please note that this JS designed for Submission Form Datapage.

<script language="JavaScript">
function check_string ()
{
var disabled = false;
if (document.getElementById("InsertRecordMyTestField").value) == BadName”) disabled = true;
if (disabled)
{
alert("Bad Name are not allowed");
return false;
}
}
document.getElementById("caspioform").onsubmit=check_string;
</script>

 

Hope this helps.

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