JS判断表单内容是否更改过
1,根据具体标签判断
function JudgesubmitForm() { var judjeWs = false; var judjeAt = false; var judjeWd = false; var ws = document.getElementById('WorkOrderStatusList');//下拉框 var wsold = ws.options[ws.selectedIndex].value; var At = document.getElementById('AlarmHandleTypeList');//下拉框 var Atold = At.options[At.selectedIndex].value; var wd = document.getElementById('OrderHandle');//输入框 //At.options[At.selectedIndex].defaultSelectedif (wsold!="") { console.log("修改WS"); judjeWs = true; } if (Atold != "") { console.log("修改AT"); judjeAt = true; } if (wd.value != wd.defaultValue) { console.log("修改Wd"); judjeWd = true; } if (judjeWs == true||judjeAt == true||judjeWd == true) { return true; } else { return false; } }
2遍历所有的form标签
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | function JudgesubmitForm() { var form = document.getElementById( 'ImgForm' ); for ( var i = 0; i < form.length; i++) { var element = form.elements[i]; var type = element.type; if (type == "checkbox" || type == "radio" ) { if (element. checked == element.defaultChecked) { console.log( "没有选择单选或多选框" ); } } if (type == "hidden" || type == "password" || type == "text" || type == "textarea" ) { if (element.value == element.defaultValue) { console.log( "没有进行文本输入" ); } } if (type == "select-one" || type == "select-multiple" ) { for ( var j = 0; j < element.options.length; j++) { if (element.options[j].selected == element.options[j].defaultSelected) { console.log( "没有选择下拉框" ); } } } if (type == "file" ) { if (element.value.length == 0) { Filechange = false ; console.log( "没选择图片" ); } } } |
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