Re: Validating user input before save
Posted: Fri Oct 05, 2012 9:00 pm
So here is what I ended up with. I added an HTML object to my form below the Package ID field which just contains
In the Form's Custom Code section for Javascript I added the following function:
In the On Blur event of the Package ID field I make a call to this showHint function passing in the value of the Package ID field.
This allows the user to be warned if they re-use a package ID.
Code: Select all
<span id="pkgIdCheck> </span>Code: Select all
function showHint(str)
{
var xmlhttp;
if (str.length==0)
{
document.getElementById("pkgIdCheck").innerHTML="";
return;
}
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("pkgIdCheck").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","/db/tcms/checkPackageID.php?q="+str,true);
xmlhttp.send();
}
This allows the user to be warned if they re-use a package ID.