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Lots of great posts on using the getURLParameter(ID) to populate a lookup column in a NewForm.aspx when coming from a list view web part on another page. Here is my problem, the source url that I am querying does not have an explicit "ID=6" but instead since I am coming from a document set home page looks like this:"...%2FSharePoint%2FProject%2520Document%2520Set%2FForms%2FProject%2Fdocsethomepage%2Easpx%3FID%3D6..." So the part that I am trying to parse or get the url parameter is "FID%D6" instead of simply ID=6.

I tried using this code which I got from a similar post (apologies for being unable to give credit to original poster) but did not successfully populate the ID. Was only able to populate the Null result:

<script type="text/javascript">
// this fetches the parameter from the current url
// CASE SENSITIVE
function getUrlParameter( name )
{
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null ) return "";
else return results[1];
}

function populateNewForm()
{
//Populate your field
//to know the element id of your field you use the IE dev tools
document.getElementById("Project_x0020_Name_c9c83d51-e59d-4fc8-b811-d8eee5fd6818_$LookupField").value = getUrlParameter("ID");
}

_spBodyOnLoadFunctionNames.push("populateNewForm")
</script>

Any ideas on edits to use this code to parse this type of URL and/or any other existing solutions that anyone is aware of? Here is my attempt to edit the code and decode the encoded url but it is not working:

// this fetches the parameter from the current url // CASE SENSITIVE var UrlParams = document.URL.split("?")[1].split("&"); var GetUrlParam = function ('ID') { for (var i = 0; i
  • Karthik, thank you for your edits to improve my question, much appreciated – akapital May 22 at 13:37
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the URL is just encoded, you could try decoding the URL before passing through the function, or try another function to get the URL. Its a standard javascript function not specific to SharePoint so there are many reference out there

https://html-online.com/articles/get-url-parameters-javascript/

Perform some debugging, as in instead of getting window.location.href set it to a string test = "https://testurl.com?ID=1" and see if it returns the expected results, and go from there

This is the function I use on the daily

function getUrlParameter(name) {
    name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
    var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
    var results = regex.exec(location.search);
    return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
};
| improve this answer | |
  • Warwick, thank you for your response, so I will try to decode the URL before passing through the function and update with the result. – akapital May 22 at 13:39
  • I was able to find many related posts which decode the url: stackoverflow.com/questions/7731778/… stackoverflow.com/questions/19491336/… stackoverflow.com/questions/25161246/… but don't know js well enough to marry with the populate new form script that was my starting point. @Warwick W – akapital May 22 at 15:47
  • Tried this but did not work, any ideas: <script type="text/javascript"> function getUrlParameter(ID) {ID = ID.replace(/[[]/,"\\[").replace(/[]]/,"\\]"); var regexS = "[\\?&]"+ID+"([^&#]*)"; var regex = new RegExp( regexS ); var results = regex.exec( window.location.href ); if( results == null ) return "8"; else return decodeURI(results[1]); }function populateNewForm(){ //Populate SPListForm document.getElementById("Project_x0020_Name_c9c83d51-e59d-4fc8-b811-d8eee5fd6818_$LookupField").value = getUrlParameter('ID'); }_spBodyOnLoadFunctionNames.push("populateNewForm") </script> – akapital May 22 at 20:17
  • what error are you getting/seeing? – Warwick W May 24 at 23:39
  • comment out the field update for now and just write the output of the function to the console.log(getUrlParameter(ID)); - get that working and then do the second part to update list – Warwick W May 24 at 23:42
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Ok, this solved my problem and many thanks to Warwick and Alex B:

setTimeout(function(){ var theValue = GetUrlKeyValue("ID",false,unescape(GetUrlKeyValue("Source"))); document.getElementById("Project_x0020_Name_c9c83d51-e59d-4fc8-b811-d8eee5fd6818_$LookupField").value = theValue; },1000);
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