Question

我的Javascript知识非常有限，所以需要一些帮助：

我有以下功能：

$('#addDialog').dialog({
        autoOpen: false,
        width: 500,
        buttons: {
            "Add": function() {

                //alert("sent:" + addStartDate.format("dd-MM-yyyy hh:mm:ss tt") + "==" + addStartDate.toLocaleString());
                var eventToAdd = {
                  //title: $("#addEventName").val(),
                    title: $("#addEventSalesPerson option:selected").text(),
                    description: $("#addEventDesc").val(),
                    start: addStartDate.format("dd-MM-yyyy hh:mm:ss tt"),
                    end: addEndDate.format("dd-MM-yyyy hh:mm:ss tt"),
                    salesperson: $("#addEventSalesPerson option:selected").text(),
                    eventPostCode: $("input[id$=addEventPostCode]").val(),
                    eventname: $("#addEventEventName option:selected").text()
                };

                if ($("input[id$=addEventPostCode]").val().length < 5) {
                    alert("Post code cannot be blank and must contain a minimum of 5 characters");

                }

                else {
                    //alert("sending " + eventToAdd.title);

                    PageMethods.addEvent(eventToAdd, addSuccess);
                    $(this).dialog("close");
                }

            }

        }
    });

#addEventEventName是一个从SQL填充的DDL，有几个选项。目前，如果"input[id$=addEventPostCode]"少于5个字符，则会发出提醒。

我需要的是，如果选择的选项是假日或疾病，那么它不会显示警报。感谢

更新我按照@David的建议尝试添加以下行，但仍然没有喜悦 - 任何接受者？

if ($("input[id$=addEventPostCode]").val().length < 5 && !($("#addEventSalesPerson option:selected").text() == "Holiday" || $("#addEventSalesPerson option:selected").text() == "Sickness")) {

Answer 1

更改以下行

if ($("input[id$=addEventPostCode]").val().length < 5) {

到

if ($("input[id$=addEventPostCode]").val().length < 5 && !($("#addEventSalesPerson option:selected").text() == "Holiday" || $("#addEventSalesPerson option:selected").text() == "Sickness")) {

如果不是假日或疾病，它应该只发出警告

! //This is Not
( //Parenthesis group expressions together so the not works on the result of the expressions inside
$("#addEventSalesPerson option:selected").text() == "Holiday" //This checks if selected text matches string
|| //This means Or
$("#addEventSalesPerson option:selected").text() == "Sickness" //This checks if selected text matches string
)

如果任何字符串匹配，结果将为false，if将不会触发警报。

基于特定选定输入的Javascript警报（下拉列表）

1 个答案: