我在从autocomplete-combobox jquery小部件中获取所选值时遇到问题。
虽然我一直在改变一些东西,但最初的代码演示是this。
根据代码,写入/验证的值应存储在ui.item.option
但似乎我无法访问它并将其存储在标签/隐藏字段中以供以后在代码隐藏时使用。
<script type="text/javascript">
$(document).ready(
function() {
$('select[name=combobox]').change(
function(){
var newText = $('ui.item.option', this).text();
$('#MyLabel').text(newText);
}
);
}
);
</script>
combobox
是aspx页面中值列表的id /名称
它没有用,有什么帮助吗?感谢。
修改
这是列出的项目(使用演示示例)
<select id="combobox" name="combobox">
<option value="">Select one...</option>
<option value="ActionScript">ActionScript</option>
<option value="AppleScript">AppleScript</option>
<option value="Asp">Asp</option>
<option value="BASIC">BASIC</option>
<option value="C">C</option>
<option value="C++">C++</option>
<option value="Clojure">Clojure</option>
<option value="COBOL">COBOL</option>
<option value="ColdFusion">ColdFusion</option>
<option value="Erlang">Erlang</option>
<option value="Fortran">Fortran</option>
<option value="Groovy">Groovy</option>
<option value="Haskell">Haskell</option>
<option value="Java">Java</option>
<option value="JavaScript">JavaScript</option>
<option value="Lisp">Lisp</option>
<option value="Perl">Perl</option>
<option value="PHP">PHP</option>
<option value="Python">Python</option>
<option value="Ruby">Ruby</option>
<option value="Scala">Scala</option>
<option value="Scheme">Scheme</option>
</select>
答案 0 :(得分:1)
不要使用JS事件更改。创建自动完成时设置UI事件:
$('select[name=combobox]').autocomplete({
change : function(event, ui){
$('#MyLabel').text(ui.item.option);
}
});
我现在看到了。我不确定这是最好的例子,但你的选择:) 你需要创建一个widget事件并调用它(我只给你一小部分演示代码,因为它太大了):
为select:
创建默认事件$.widget( "ui.combobox", {
select : function(event, ui){ alert (ui.item.value);},
_create: function() {
如果定义了事件,请尝试调用它:
select: function( event, ui ) {
if(that.options.select != null){
that.options.select(event, ui);
}
ui.item.option.selected = true;
that._trigger( "selected", event, {
item: ui.item.option
});
},
在默认选择方法上创建组合框时:
$( "#combobox" ).combobox({select : function(event, ui){ $('#MyLabel').text(ui.item.value); }});
试试这个:)
编辑//
查看完整代码。它对我有用:
<script>
(function( $ ) {
$.widget( "ui.combobox", {
select : function(event, ui){ alert (ui.item.value);},
_create: function() {
var input,
that = this,
select = this.element.hide(),
selected = select.children( ":selected" ),
value = selected.val() ? selected.text() : "",
wrapper = this.wrapper = $( "<span>" )
.addClass( "ui-combobox" )
.insertAfter( select );
function removeIfInvalid(element) {
var value = $( element ).val(),
matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( value ) + "$", "i" ),
valid = false;
select.children( "option" ).each(function() {
if ( $( this ).text().match( matcher ) ) {
this.selected = valid = true;
return false;
}
});
if ( !valid ) {
// remove invalid value, as it didn't match anything
$( element )
.val( "" )
.attr( "title", value + " didn't match any item" )
.tooltip( "open" );
select.val( "" );
setTimeout(function() {
input.tooltip( "close" ).attr( "title", "" );
}, 2500 );
input.data( "autocomplete" ).term = "";
return false;
}
}
input = $( "<input>" )
.appendTo( wrapper )
.val( value )
.attr( "title", "" )
.addClass( "ui-state-default ui-combobox-input" )
.autocomplete({
delay: 0,
minLength: 0,
source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
response( select.children( "option" ).map(function() {
var text = $( this ).text();
if ( this.value && ( !request.term || matcher.test(text) ) )
return {
label: text.replace(
new RegExp(
"(?![^&;]+;)(?!<[^<>]*)(" +
$.ui.autocomplete.escapeRegex(request.term) +
")(?![^<>]*>)(?![^&;]+;)", "gi"
), "<strong>$1</strong>" ),
value: text,
option: this
};
}) );
},
select: function( event, ui ) {
if(that.options.select != null){
that.options.select(event, ui);
}
ui.item.option.selected = true;
that._trigger( "selected", event, {
item: ui.item.option
});
},
change: function( event, ui ) {
if ( !ui.item )
return removeIfInvalid( this );
}
})
.addClass( "ui-widget ui-widget-content ui-corner-left" );
input.data( "autocomplete" )._renderItem = function( ul, item ) {
return $( "<li>" )
.data( "item.autocomplete", item )
.append( "<a>" + item.label + "</a>" )
.appendTo( ul );
};
$( "<a>" )
.attr( "tabIndex", -1 )
.attr( "title", "Show All Items" )
.tooltip()
.appendTo( wrapper )
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass( "ui-corner-all" )
.addClass( "ui-corner-right ui-combobox-toggle" )
.click(function() {
// close if already visible
if ( input.autocomplete( "widget" ).is( ":visible" ) ) {
input.autocomplete( "close" );
removeIfInvalid( input );
return;
}
// work around a bug (likely same cause as #5265)
$( this ).blur();
// pass empty string as value to search for, displaying all results
input.autocomplete( "search", "" );
input.focus();
});
input
.tooltip({
position: {
of: this.button
},
tooltipClass: "ui-state-highlight"
});
},
destroy: function() {
this.wrapper.remove();
this.element.show();
$.Widget.prototype.destroy.call( this );
}
});
})( jQuery );
$(function() {
$( "#combobox" ).combobox({select : function(event, ui){ alert(ui.item.value); }});
$( "#toggle" ).click(function() {
$( "#combobox" ).toggle();
});
});
</script>