Javascript manipulation HTML control instance of javascript to add HTML

  • 2020-03-30 00:42:47
  • OfStack


//The padding of the drop-down list
 _showSchools: function (data) { //Data represents a data object
                var mySelect = document.getElementById("selectSchools"); //Gets the drop-down box
                mySelect.options.length = 0;
                //Add option to the select TAB
                for (var index in data) {
                    var item = data[index];
                    var opp = new Option(item.SchoolName, item.name);  //The first parameter represents what the drop-down box shows, and the second represents what the drop-down box selects
                    opp.name = "option" + index;
                    mySelect.add(opp);
                }
            },
//The retrieval of the contents of the drop-down list
var schoolId = document.getElementById("selectSchools").value;
// We usually select the value of the drop-down box is the selected content, not the displayed content, how to get the displayed content, the following is Gets the drop-down box The selected display content of 
function on_idmbzd_change(){ 
    var sel_obj=document.getElementById("idMbzd");
    var index=sel_obj.selectedIndex;
    alert(sel_obj.options[index].value);
    alert(sel_obj.options[index].text);
}
//The retrieval of the contents of a radio button
 var chkObjs = document.getElementsByName("radio");
                var checkvalue = null;
                for (var i = 0; i < chkObjs.length; i++) {
                    if (chkObjs[i].checked) {
                        checkvalue = parseInt(chkObjs[i].value);
                    }
                }
//Radio button Settings
if (entity.SelectType == 1) document.getElementById("SelectType").checked = true;
if (entity.SelectType == 0) document.getElementById("UnSelectType").checked = true;
//Multi-marquee Settings
setCheckBox: function (data) {
                var courseList = document.getElementsByName("CourseList");
                for (var i = 0; i < courseList.length - 1; i++) {
                    if (courseList[i].value==data) {
                        courseList[i].checked=true;
                    }
                }
            },


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