用于搜索和多选的下拉列表中的TextBox [英] TextBox With In Dropdownlist For Searching and Multiple Select
本文介绍了用于搜索和多选的下拉列表中的TextBox的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想添加一个文本框，用于搜索下拉列表中的项目和复选框列表，以便在下拉列表中进行多项选择
我的代码在这里，但是不执行完整的任务
i want to add a textbox for searching items in dropdownlist and checkboxlist for multiple selection inside dropdownlist
my code here but did not perform complete task
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>jQuery UI Autocomplete - Combobox</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css" />
<style>
.custom-combobox {
position: relative;
display: inline-block;
}
.custom-combobox-toggle {
position: absolute;
top: 0;
bottom: 0;
margin-left: -1px;
padding: 0;
/* support: IE7 */
*height: 1.7em;
*top: 0.1em;
}
.custom-combobox-input {
margin: 0;
padding: 0.3em;
}
</style>
<script>
(function( $ ) {
$.widget( "custom.combobox", {
_create: function() {
this.wrapper = $( "<span>" )
.addClass( "custom-combobox" )
.insertAfter( this.element );
this.element.hide();
this._createAutocomplete();
this._createShowAllButton();
},
_createAutocomplete: function() {
var selected = this.element.children( ":selected" ),
value = selected.val() ? selected.text() : "";
this.input = $( "<input>" )
.appendTo( this.wrapper )
.val( value )
.attr( "title", "" )
.addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" )
.autocomplete({
delay: 0,
minLength: 0,
source: $.proxy( this, "_source" )
})
.tooltip({
tooltipClass: "ui-state-highlight"
});
this._on( this.input, {
autocompleteselect: function( event, ui ) {
ui.item.option.selected = true;
this._trigger( "select", event, {
item: ui.item.option
});
},
autocompletechange: "_removeIfInvalid"
});
},
_createShowAllButton: function() {
var input = this.input,
wasOpen = false;
$( "<a>" )
.attr( "tabIndex", -1 )
.attr( "title", "Show All Items" )
.tooltip()
.appendTo( this.wrapper )
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass( "ui-corner-all" )
.addClass( "custom-combobox-toggle ui-corner-right" )
.mousedown(function() {
wasOpen = input.autocomplete( "widget" ).is( ":visible" );
})
.click(function() {
input.focus();
// Close if already visible
if ( wasOpen ) {
return;
}
// Pass empty string as value to search for, displaying all results
input.autocomplete( "search", "" );
});
},
_source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
response( this.element.children( "option" ).map(function() {
var text = $( this ).text();
if ( this.value && ( !request.term || matcher.test(text) ) )
return {
label: text,
value: text,
option: this
};
}) );
},
_removeIfInvalid: function( event, ui ) {
// Selected an item, nothing to do
if ( ui.item ) {
return;
}
// Search for a match (case-insensitive)
var value = this.input.val(),
valueLowerCase = value.toLowerCase(),
valid = false;
this.element.children( "option" ).each(function() {
if ( $( this ).text().toLowerCase() === valueLowerCase ) {
this.selected = valid = true;
return false;
}
});
// Found a match, nothing to do
if ( valid ) {
return;
}
// Remove invalid value
this.input
.val( "" )
.attr( "title", value + " didn't match any item" )
.tooltip( "open" );
this.element.val( "" );
this._delay(function() {
this.input.tooltip( "close" ).attr( "title", "" );
}, 2500 );
this.input.data( "ui-autocomplete" ).term = "";
},
_destroy: function() {
this.wrapper.remove();
this.element.show();
}
});
})( jQuery );
$(function() {
$( "#combobox" ).combobox();
$( "#toggle" ).click(function() {
$( "#combobox" ).toggle();
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div class="ui-widget">
<label>Your preferred programming language: </label>
<asp:DropDownList ID="combobox" runat="server" AutoPostBack="true"
onselectedindexchanged="combobox_SelectedIndexChanged">
<asp:ListItem Text="A" Value="A"></asp:ListItem>
<asp:ListItem Text="ActionScript" Value="AB"></asp:ListItem>
<asp:ListItem Text="AppleScript" Value="AC"></asp:ListItem>
<asp:ListItem Text="AD" Value="AD"></asp:ListItem>
<asp:ListItem Text="AE" Value="AE"></asp:ListItem>
<asp:ListItem Text="B" Value="B"></asp:ListItem>
<asp:ListItem Text="C" Value="C"></asp:ListItem>
<asp:ListItem Text="D" Value="D"></asp:ListItem>
<asp:ListItem Text="E" Value="E"></asp:ListItem>
<asp:ListItem Text="F" Value="F"></asp:ListItem>
<asp:ListItem Text="G" Value="G"></asp:ListItem>
<asp:ListItem Text="H" Value="H"></asp:ListItem>
<asp:ListItem Text="I" Value="I"></asp:ListItem>
<asp:ListItem Text="J" Value="J"></asp:ListItem>
<asp:ListItem Text="K" Value="K"></asp:ListItem>
<asp:ListItem Text="L" Value="L"></asp:ListItem>
<asp:ListItem Text="M" Value="M"></asp:ListItem>
<asp:ListItem Text="N" Value="N"></asp:ListItem>
<asp:ListItem Text="O" Value="O"></asp:ListItem>
<asp:ListItem Text="P" Value="P"></asp:ListItem>
<asp:ListItem Text="Q" Value="Q"></asp:ListItem>
<asp:ListItem Text="R" Value="R"></asp:ListItem>
<asp:ListItem Text="S" Value="S"></asp:ListItem>
<asp:ListItem Text="T" Value="T"></asp:ListItem>
<asp:ListItem Text="U" Value="U"></asp:ListItem>
<asp:ListItem Text="V" Value="V"></asp:ListItem>
<asp:ListItem Text="W" Value="W"></asp:ListItem>
<asp:ListItem Text="X" Value="X"></asp:ListItem>
<asp:ListItem Text="Y" Value="Y"></asp:ListItem>
<asp:ListItem Text="Z" Value="Z"></asp:ListItem>
</asp:DropDownList>
</div>
<button id="toggle">Show underlying select</button>
<asp:Label ID="Label1" runat="server"></asp:Label><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</form>
</body>
</html>推荐答案
) {
.widget( \"custom.combobox\", {
_create: function() {
this.wrapper =
.widget( "custom.combobox", { _create: function() { this.wrapper =
( \"<span>\" )
.addClass( \"custom-combobox\" )
.insertAfter( this.element );
this.element.hide();
this._createAutocomplete();
this._createShowAllButton();
},
_createAutocomplete: function() {
var selected = this.element.children( \":selected\" ),
value = selected.val() ? selected.text() : \"\";
this.input =
( "<span>" ) .addClass( "custom-combobox" ) .insertAfter( this.element ); this.element.hide(); this._createAutocomplete(); this._createShowAllButton(); }, _createAutocomplete: function() { var selected = this.element.children( ":selected" ), value = selected.val() ? selected.text() : ""; this.input =
这篇关于用于搜索和多选的下拉列表中的TextBox的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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