How to insert null value in a dropdown?

[Legacy User]

Hi Team,

 

The values in my symptom_code are binded on the values in resolution_method field in detail_in.htmpl. For that, whenever resolution method changes, symptom code change accordingly. Now I want whenver a user select <empty> for resolution method (which inserts a null value in database), value in my symptom code also show an empty field that inserts a null value in the database. For that I am using the following code:

document.main_form.elements["SET.symptom_code"].options[0] = new Option("<empty>", null);

 

But when I run this case, value 0 is updating for symptom_code in call_req table. Which is showing a ? when that updated incident is opened for editing.

 

Kindly provide the syntax that will insert a null value for symptom_code dropdown.

 

Thanks & Regards

Balram Singh Deswal

[Legacy User]

Hi,

could you provide full code of your dropdown?

 

Regards,

cdtj

[Legacy User]

Hi cdtj,

 

I have got the solution by hit and trail. To store NULL value, the code to be used should be:

document.main_form.elements["SET.symptom_code"].options[0] = new Option("<empty>", "");

Thanks & Regards

Balram Singh Deswal

[Giedrius Bekintis]

I think you should use:

document.main_form.elements["SET.symptom_code"].options[0] = new Option("<empty>", "");

 

[Legacy User]

Thanks Gutis.

[wteixeira]

Thanks for sharing this Gutis.