$("#id").multiSelect({ oneOrMoreSelected: '*',selectAll:false,noneSelected:'默认显示' }); Usage: $('#id').multiSelect( options, callback ) Options: selectAll - whether or not to display the Select All option; true/false, default = true selectAllText - text to display for selecting/unselecting all options simultaneously noneSelected - text to display when there are no selected items in the list oneOrMoreSelected - text to display when there are one or more selected items in the list (note: you can use % as a placeholder for the number of items selected). Use * to show a comma separated list of all selected; default = '% selected' optGroupSelectable - whether or not optgroups are selectable if you use them; true/false, default = false listHeight - the max height of the droptdown options 代码如下: // Update the textbox with the total number of selected items, and determine select all $("#id").updateSelected() // Update the dropdown options $("#id").multiSelectOptionsUpdate() // Hide the dropdown $("#id").multiSelectOptionsHide() // Show the dropdown $("#id").multiSelectOptionsShow() // get a coma-delimited list of selected values $("#id").selectedValuesString
使用javascript 设置多选框的默认选中项。 代码如下: $("#id").attr("value","");//清空选中项。 var ids='1,3,6';//设置选中框ID。 var id_Ojbect=(ids).split(",");//分割为Ojbect数组。 var count=$("#id option").length;//获取下拉框的长度。 for(var c=0;cfor(var c_i=0;c_i{ if($("#id").get(0).options[c_i].text == id_Ojbect[c]) { $("#id").get(0).options[c_i].selected = true;//设置为选中。 } } }