Error when using setValue to form control after sorted array

Question

I'm having this error:

ERROR Error: Must supply a value for form control at index: 1.

I'm doing an app with Angular 9, the problem is at Typescript.

The following code is working:

this.registros.controls.arrayProcedimientos.setValue(convert.arrayProcedimientos);

But if I sort the array and then do a setValue I don't know what happens but is not working, example:

convert.arrayProcedimientos.sort(function(a,b){
          return a.fechaInicioProcedimiento > b.fechaInicioProcedimiento;
        });

//setValue of the sorted array
this.registros.controls.arrayProcedimientos.setValue(convert.arrayProcedimientos);

psd: I tried doing a patchValue(), which it doesn't throw an error, but the problem is that the object is an array of arrays. So doing a patchValue works nice on the unique fields but on the subarrays is trolling (literally).

Thanks for your attention and help, and if you need some pictures or whatever feel free to ask.

Great community :)

Dharman · Accepted Answer · 2020-07-28 12:10:37Z

1

I think first you need to fix they way you are sorting, not sure how its working for you. It must give you compile time error at sorting.

Instead of this

convert.arrayProcedimientos.sort(function(a,b){
          return a.fechaInicioProcedimiento > b.fechaInicioProcedimiento;
     });

Use this

 convert.arrayProcedimientos.sort(function(a,b){
              return a.fechaInicioProcedimiento - b.fechaInicioProcedimiento;
         });

And then

this.registros.controls.arrayProcedimientos.setValue(convert.arrayProcedimientos);

should work.

Here is why I am asking you to change the sorting syntax TypeScript sorting an array

edited Jul 28, 2020 at 12:10

Dharman♦

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answered Jul 28, 2020 at 12:04

Naveen Motwani - AIS

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1 Comment

Alberto A.M. Over a year ago

Thanks a lot for your response. It was not exactly the answer. I found my problem. And the problem is that I was "preparing memory before the values" so that's the reasson that I was retrieving the error. Anyway thanks for yout time.

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