İnternet explorer üzerinde düzgün çalışmayabilir.
<!DOCTYPE html>
<html>
<head runat="server">
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<title>TextBox içerisini kopyalama</title>
<script>
function panoyaKopyala(txt)
{
var copyTextarea = document.querySelector('#'+txt);
copyTextarea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'successful' : 'unsuccessful';
console.log('Copying text command was ' + msg);
} catch (err) {
console.log('Kopayalanamadı');
}
}
</script>
</head>
<body>
<label>Kapyalanacak Yazı :</label>
<input type="text" name="txtKopyalanacakYazi" id="txtKopyalanacakYazi" class="txt" value="http://barkinm.blogspot.com.tr/" />
<button onclick="panoyaKopyala('txtKopyalanacakYazi')" name="btnKopyala" id="btnKopyala">Panoya Kopyala</button>
</body>
</html>