Question

代码：

<script>
    function autocomplete(inp, arr) {
      inp.addEventListener("input", function(e) {
          var a, b, i, val = this.value;
          closeAllLists();
          if (!val) { return false;}
          currentFocus = -1;
          a = document.createElement("DIV");
          a.setAttribute("id", this.id + "autocomplete-list");
          a.setAttribute("class", "autocomplete-items");
          this.parentNode.appendChild(a);
          for (i = 0; i < arr.length; i++) {
            if (arr[i].substr(0, val.length).toUpperCase() == val.toUpperCase()) {
              b = document.createElement("DIV");
              b.innerHTML = "<strong>" + arr[i].substr(0, val.length) + "</strong>";
              b.innerHTML += arr[i].substr(val.length);
              b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>";
              b.addEventListener("click", function(e) {
                  inp.value = this.getElementsByTagName("input")[0].value;
                  closeAllLists();
              });
              a.appendChild(b);
            }
          }
      });
      inp.addEventListener("keydown", function(e) {
          var x = document.getElementById(this.id + "autocomplete-list");
          if (x) x = x.getElementsByTagName("div");
          if (e.keyCode == 40) {
            addActive(x);
          } else if (e.keyCode == 38) {
            addActive(x);
          } else if (e.keyCode == 13) {
            e.preventDefault();
            if (currentFocus > -1) {
              if (x) x[currentFocus].click();
            }
          }
      });
      function addActive(x) {
        if (!x) return false;
        removeActive(x);
        if (currentFocus >= x.length) currentFocus = 0;
        if (currentFocus < 0) currentFocus = (x.length - 1);
        x[currentFocus].classList.add("autocomplete-active");
      }
      function removeActive(x) {
        for (var i = 0; i < x.length; i++) {
          x[i].classList.remove("autocomplete-active");
        }
      }
      function closeAllLists(elmnt) {
        var x = document.getElementsByClassName("autocomplete-items");
        for (var i = 0; i < x.length; i++) {
          if (elmnt != x[i] && elmnt != inp) {
            x[i].parentNode.removeChild(x[i]);
          }
        }
      }
      document.addEventListener("click", function (e) {
          closeAllLists(e.target);
          });
    }
    var countries = ["Afghanistan","Albania","Algeria","Andorra","Angola","Anguilla","Antigua & Barbuda","Argentina","Armenia","Aruba","Australia","Austria","Azerbaijan","Bahamas","Bahrain","Bangladesh","Barbados","Belarus","Belgium","Belize","Benin","Bermuda"];
    autocomplete(document.getElementById("myInput"), countries);
</script>

<form autocomplete="off">
    <div class="autocomplete" style="width:300px;">
        <input id="myInput" type="text" name="myCountry" placeholder="Country">
    </div>
    <input type="submit">
</form>

在这段代码中，我有一个自动完成文本框，可以很好地工作。现在，当我点击提交按钮并通过操作重定向它的工作，但我想当我键入任何字母然后通过箭头键或鼠标选择数据然后它将重定向到另一页。那么，我该怎么办呢？请帮帮我。

谢谢

Answer 1

我看到这个问题的两个部分，首先是你想要在文本框中附加一个事件处理程序，以便从自动完成下拉列表中进行选择。我会查看此页面以获取相关帮助：Any event triggered on autocomplete?

问题的第二部分是如何以编程方式提交表单，其中只涉及获取表单，然后在其上调用submit（）方法How to submit a form using javascript?

如何在不点击提交的情况下从自动填充文本框中选择值时重定向？

1 个答案: