if you want to set default price list with help of java script, you can use Rest, below is the code to fetch pricelist id based on pricelist name and set it
function SetPriceList() {
var number = 1;
var filter = “/PriceLevelSet?$select=Name,PriceLevelId&$filter=Name eq ‘Default'”;
RetrieveUnit(filter);
}
function GetODataPath() {
return Xrm.Page.context.getServerUrl() + “/xrmservices/2011/organizationdata.svc”;
}
function RetrieveUnit(filter) {
var retrieveRecordsReq = new XMLHttpRequest();
retrieveRecordsReq.open(“GET”, GetODataPath() + filter, false);
retrieveRecordsReq.setRequestHeader(“Accept”, “application/json”);
retrieveRecordsReq.setRequestHeader(“Content-Type”, “application/json; charset=utf-8”);
var temp= retrieveRecordsReq.send();
if (retrieveRecordsReq.readyState == 4 && retrieveRecordsReq.status == 200) {
var retrievedRecords = this.parent.JSON.parse(retrieveRecordsReq.responseText).d;
var Result = retrievedRecords.results[0];
var lookup = new Object();
var lookupValue = new Array();
lookup.id = Result.PriceLevelId;
lookup.entityType = “pricelevel”;
lookup.name = Result.Name;
lookupValue[0] = lookup;
Xrm.Page.getAttribute(“pricelevelid”).setValue(lookupValue);
}
}
*I have created a Default pricelist.
Enjoy !!
HIMBAP 