show/hide fields based on drop down choices

[JulieK_]

I have a dropdown field with three choices. Based on the selection, I need a specific text form field to appear, and the others to remain hidden. (Or if it makes the code more clean, the resulting field could be a dropdown, too, with the appropriate choice selected.) I don't know Java well enough to extrapolate code from online examples and repurpose it for my forms. I can provide a sample form. Thanks in advance for your help.

[Andrey0101]

Hi, Could you please show how to set filed (more than 6) set mandatory/readonly? thank you in advance, Andrey

[try67]

this.getField("Text1").required = true;

this.getField("Text2").readonly = true;

Duplicate and repeat as much as necessary.

[Andrey0101]

thank you so much, ufortunatelly first 2 feild cnanged status, other not. 

code: custom verification/dropbox

var f1 = this.getField("phone");
var f11 = this.getField("phone_other");
var f2 = this.getField("date_order");
var f21 = this.getField("reason");
var f3 = this.getField("phone_number_other");
var f4 = this.getField("limit");
var f41 = this.getField("limit_other");
var f5 = this.getField("internet");
var f51 = this.getField("internet_other");
var f6 = this.getField("WBS");

if (event.value=="-Select action-") {

f1.readonly = true; f11.readonly = true;
f2.readonly = true; f21.readonly = true;
f3.readonly = true;
f4.readonly = true; f41.readonly = true;
f5.readonly = true; f51.readonly = true;
f6.readonly = true;

f1.required = false; f11.required = false;
f2.required = false; f21.required = false;
f3.required = false;
f4.required = false; f41.required = false;
f5.required = false; f51.required = false;
f6.required = false;

} else if (event.value=="Mobile phone request") {

...

}

could you please help?

BR

Andrey

[try67]

Check the JS Console for error messages.

[Andrey0101]

checked, thank u so much. solve issue