Question

这是我第一次参加此活动。我正在尝试创建一个具有一些下拉选项的脚本。我需要从最后一个下拉列表中获取值，然后我需要将该值乘以输入数字。

我还没有创建输入号码，因为我不知道如何从价格中获取数据。基本上当它显示价格时，我需要这个价格才能有输入数字区域与价格相乘。

我的小提琴就在这里：http://jsfiddle.net/blaxxzg/sy95ksnL/

var stateObject = {
    "Mali format": {
        "2/5 cm": ["9,5 €"],
    },
    "Mali format-tanki": {
        "1/3,5 cm": ["12,13 €"],
    },
    "Veliki format": {
        "3/7 cm": ["20,15 €"],
    },
    "Veliki format-tanki": {
        "2/4 cm": ["18,79 €"],
    }
}

window.onload = function () {
    var stateSel = document.getElementById("stateSel"),
        countySel = document.getElementById("countySel"),
        citySel = document.getElementById("citySel");
    for (var state in stateObject) {
        stateSel.options[stateSel.options.length] = new Option(state, state);
    }

    stateSel.onchange = function () {
        countySel.length = 1; // remove all options bar first
        citySel.length = 1; // remove all options bar first
        if (this.selectedIndex < 1) {
          countySel.options[0].text = "Prvo odaberite tip kamena"
          citySel.options[0].text = "Prvo odaberite debljinu kamena"
          return; // done   
        }  
        countySel.options[0].text = "Please select county"
        for (var county in stateObject[this.value]) {
            countySel.options[countySel.options.length] = new Option(county, county);
        }
        if (countySel.options.length==2) {
          countySel.selectedIndex=1;
          countySel.onchange();
        }  

    }
    stateSel.onchange(); // reset in case page is reloaded

    countySel.onchange = function () {
        citySel.length = 1; // remove all options bar first
        if (this.selectedIndex < 1) {
          citySel.options[0].text = "Please select county first"
          return; // done   
        }  
        citySel.options[0].text = "Please select city"

        var cities = stateObject[stateSel.value][this.value];
        for (var i = 0; i < cities.length; i++) {
            citySel.options[citySel.options.length] = new Option(cities[i], cities[i]);
        }
        if (citySel.options.length==2) {
          citySel.selectedIndex=1;
          citySel.onchange();
        }  

    }
}

Answer 1

Here is the solution you are looking for 我已经为最后一次下拉添加了onchange。

citySel.onchange = function(){
document.getElementById('PicExtPrice').value=this.options[this.selectedIndex].value;
    }

从下拉列表javascript获取数据

1 个答案: