selected html filter single fields

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selected html filter single fields

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#1 by (1 votes)

1

I have the following selected, how do I filter the unique fields for example it is repeating the same option <option value='967'>GOIANIA - GO</option> several times I want it to show only the repeated data once, and it is possible to do this with jquery.

"<option selected="selected" value="0">Cidade</option><option value='967'>GOIANIA - GO</option><option value='967'>GOIANIA - GO</option><option value='967'>GOIANIA - GO</option><option value='967'>GOIANIA - GO</option>"

javascript html jquery

asked by anonymous 11.08.2016 / 13:58

1 answer

Sending a payload with scapy Problems in Java project with CDI (Weld) + Hibernate + PrimeFaces

score 1 · Accepted Answer

Understand that the script below only treats the symptom, the problem will still continue, ideally you should perform the filter in your query that populates the select.

var values = [];
var select = document.querySelector("select");
[].forEach.call(select.options, function (option, indice) {
  if (values.indexOf(option.value) > -1) {
    select.removeChild(option);
  } else {
    values.push(option.value);
  }  
});

<select>
  <option value="">Selecione...</option>
  <option value="1">Opção 1</option>
  <option value="2">Opção 2</option>
  <option value="3">Opção 3</option>
  <option value="4">Opção 4</option>
  <option value="2">Opção 2</option>
  <option value="3">Opção 3</option>
  <option value="4">Opção 4</option>
  <option value="5">Opção 5</option>
</select>

EDIT - Tip

Reading your comment, I believe Distinct will work if you decrease the fields of your select .

egm.LstCid.Select(cid => new { Id = cid.Id, Nome = cid.Nome }).Distinct().ToList();