Jefferson Reis,
Como posso introduzir esse conceito neste código :
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <meta charset="utf-8" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <script type="text/javascript" src="jquery-3.1.1.min.js"></script> <script type="text/javascript"> function AddValue() { var valueToAdd = $( "#Textbox" ).val(); $( "#Listbox" ).append( '<option value="' + valueToAdd + '">' + valueToAdd + '</option>' ); } function RemoveValue() { var valueToRemove = $( "#Textbox" ).val(); $( "#Listbox option[value='" + valueToRemove + "']" ).remove(); } function RemoveSelectedValue() { $( "#Listbox option:selected" ).remove(); } </script> </head> <body> <input id="Textbox" type="text" /> <br /> <input id="Add" type="button" value="Adicionar" onclick="AddValue();" /> <input id="RemoveSelected" type="button" value="Remover" onclick="RemoveSelectedValue();" /> <br /><br /> <select id="Listbox" size="1" style="width: 200px;"> </select> </body> </html>
Cumprimentos
Patrício
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