工作中收集JSCRIPT代码之(下拉框篇)
// 给下拉框增加项
function insertOption(obj, _text, _value, _selected){
// 如果存在此VALUE,则编辑
for (var i=0; i< obj.length; i++){
if (obj[i].value == _value){
obj[i].text = _text;
return;
}
}
// 若不存在此VALUE,新建
var _option = document.createElement("OPTION");
_option.text = _text;
_option.value = _value;
obj.add(_option);
if (_selected) {obj.selectedIndex = obj.length-1;}
}
// 给下拉框去除某项
function delOption(obj,_value){
for (var i=0; i< obj.length; i++){
if (obj[i].value == _value){
obj.remove(i);
return;
}
}
}
// 给多行下拉框去除某几项(多项)
function delMultiOption(obj,_indexArray){
var offset = 0;
for (var i=0; i< _indexArray.length; i++){
obj.options.remove(_indexArray[i]+offset);
offset--;
}
}
// 清除选项
function clearOptions(obj){
obj.options.length=0;
}
function getSelectedOption(obj){
var ret = new Array();
ret[0] = obj.value;
ret[1] = obj.options[obj.selectedIndex].text;
return ret;
}
// 多项下拉框的选择项的值
function getMultiSelectedValue(ob,excludeFirst)
{
var arSelected = new Array();
while (ob.selectedIndex != -1)
{
if (!(excludeFirst && ob.selectedIndex == 0)){arSelected.push(ob.value);}
ob.options[ob.selectedIndex].selected = false;
}
return arSelected;
}
// 多项下拉框的选择项的INDEX
// ob: 控件
// excludeFirst: 是否排除第一项(第一项有时为说明项)
function getMultiSelectedIndex(ob,excludeFirst)
{
var arSelected = new Array();
while (ob.selectedIndex != -1)
{
if (!(excludeFirst && ob.selectedIndex == 0)){arSelected.push(ob.selectedIndex);}
ob.options[ob.selectedIndex].selected = false;
}
return arSelected;
}
function insertOption(obj, _text, _value, _selected){
// 如果存在此VALUE,则编辑
for (var i=0; i< obj.length; i++){
if (obj[i].value == _value){
obj[i].text = _text;
return;
}
}
// 若不存在此VALUE,新建
var _option = document.createElement("OPTION");
_option.text = _text;
_option.value = _value;
obj.add(_option);
if (_selected) {obj.selectedIndex = obj.length-1;}
}
// 给下拉框去除某项
function delOption(obj,_value){
for (var i=0; i< obj.length; i++){
if (obj[i].value == _value){
obj.remove(i);
return;
}
}
}
// 给多行下拉框去除某几项(多项)
function delMultiOption(obj,_indexArray){
var offset = 0;
for (var i=0; i< _indexArray.length; i++){
obj.options.remove(_indexArray[i]+offset);
offset--;
}
}
// 清除选项
function clearOptions(obj){
obj.options.length=0;
}
function getSelectedOption(obj){
var ret = new Array();
ret[0] = obj.value;
ret[1] = obj.options[obj.selectedIndex].text;
return ret;
}
// 多项下拉框的选择项的值
function getMultiSelectedValue(ob,excludeFirst)
{
var arSelected = new Array();
while (ob.selectedIndex != -1)
{
if (!(excludeFirst && ob.selectedIndex == 0)){arSelected.push(ob.value);}
ob.options[ob.selectedIndex].selected = false;
}
return arSelected;
}
// 多项下拉框的选择项的INDEX
// ob: 控件
// excludeFirst: 是否排除第一项(第一项有时为说明项)
function getMultiSelectedIndex(ob,excludeFirst)
{
var arSelected = new Array();
while (ob.selectedIndex != -1)
{
if (!(excludeFirst && ob.selectedIndex == 0)){arSelected.push(ob.selectedIndex);}
ob.options[ob.selectedIndex].selected = false;
}
return arSelected;
}
本系统,待补充及完善,长期未完成稿,欢迎指正 :)
愿一路奔跑不退缩,到目前一直从事.Net的B/S,C/S企业应用研发